Helio Chacham

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Orientou

Produções bibliográficas

• SOUSA, FREDERICO B. ; AMES, ALESSANDRA ; LIU, MINGZU ; GASTELOIS, PEDRO L. ; OLIVEIRA, VINÍCIUS A. ; ZHOU, DA ; Matos, Matheus J. S. ; Chacham, Helio ; TERRONES, MAURICIO ; TEODORO, MARCIO D. ; MALARD, LEANDRO M. . Strong Magneto-Optical Responses of an Ensemble of Defect-Bound Excitons in Ambient Exposed WS 2 and WSe 2 Monolayers. Journal of Physical Chemistry C , v. 129, p. 8645-8653, 2025.

• SOUSA, FREDERICO B. ; FUJISAWA, KAZUNORI ; MENESCAL, FELIPE ; Matos, Matheus J. S. ; PIMENTA, MARCOS A. ; Chacham, Helio ; TERRONES, MAURICIO ; MALARD, LEANDRO M. ; CARVALHO, BRUNO R. . Optical spectroscopy of defects in atomically thin transition metal dichalcogenides. Applied Physics Reviews , v. 12, p. 021321, 2025.

• MENDONÇA, BRUNO H. S. ; PEREIRA, NEUMA ; REZENDE, NATÁLIA P. ; MORAES, ELIZANE E. DE ; Lacerda, Rodrigo G. ; Chacham, Helio . Conduction Percolation in MoS Nanoink Humidity Sensors: Critical Exponents and Nanochannel Dimensionality. Journal of Physical Chemistry C , v. 128, p. 8042-8047, 2024.

• VALLE, JOÃO V. L. ; MENDONÇA, BRUNO H. S. ; BARBOSA, MARCIA C. ; Chacham, Helio ; DE MORAES, ELIZANE E. . Accuracy of TIP4P/2005 and SPC/Fw Water Models. JOURNAL OF PHYSICAL CHEMISTRY B , v. 128, p. 1091-1097, 2024.

• CANÇADO, LUIZ G. ; MONKEN, VÍTOR P. ; CAMPOS, JOÃO LUIZ E. ; SANTOS, JOYCE C.C. ; BACKES, CLAUDIA ; Chacham, Hélio ; Neves, Bernardo R.A. ; Jorio, Ado . Science and Metrology of defects in graphene using Raman Spectroscopy. CARBON , v. 220, p. 118801, 2024.

• PINTO, ALYSSON A ; DE MORAES, ELIZANE E ; Chacham, Helio ; BATISTA, RONALDO J C . Modulation of spin and charge currents through functionalized 2D diamond devices. NANOTECHNOLOGY , v. 35, p. 075704, 2024.

• SOUSA, FREDERICO B. ; Matos, Matheus J. S. ; CARVALHO, BRUNO R. ; LIU, MINGZU ; AMES, ALESSANDRA ; ZHOU, DA ; RESENDE, GEOVANI C. ; YU, ZHUOHANG ; LAFETA, LUCAS ; PIMENTA, MARCOS A. ; TERRONES, MAURICIO ; TEODORO, MARCIO D. ; Chacham, Helio ; MALARD, LEANDRO M. . Giant Valley Zeeman Splitting in Vanadium-Doped WSe 2 Monolayers. Small , v. 20, p. 2405434, 2024.

• DE OLIVEIRA, RAPHAELA ; FREITAS, LUISA V. C. ; Chacham, Helio ; FREITAS, RAUL O. ; MOREIRA, ROBERTO L. ; CHEN, HUAIYU ; HAMMARBERG, SUSANNA ; WALLENTIN, JESPER ; RODRIGUES-JUNIOR, GILBERTO ; MARÇAL, LUCAS A. B. ; CALLIGARIS, GUILHERME A. ; CADORE, ALISSON R. ; KRAMBROCK, KLAUS ; BARCELOS, INGRID D. ; MALACHIAS, ANGELO . Water Nanochannels in Ultrathin Clinochlore Phyllosilicate Mineral with Ice-like Behavior. Journal of Physical Chemistry C , v. 128, p. 14388-14398, 2024.

• MENDONÇA, BRUNO H. S. ; DE MORAES, ELIZANE E. ; Batista, Ronaldo J. C. ; de Oliveira, Alan B. ; BARBOSA, MARCIA C. ; Chacham, Hélio . Water Diffusion in Carbon Nanotubes for Rigid and Flexible Models. Journal of Physical Chemistry C , v. 127, p. 9769-9778, 2023.

• G VIEIRA, C. ; P H DE OLIVEIRA, MATHEUS A. ; FERNANDES, W. P. ; MATOS, M. J. S. ; PANIAGO, R. ; DE CARVALHO, VAGNER EUSTÁQUIO ; Chacham, H. ; A SOARES, E. . Unveiling Pseudo-Dirac Resonances in the (7×7)R19.1° Phase of Sulfur Segregated on Cu(111) Surface. Journal of Physical Chemistry C , v. 127, p. 24633-24640, 2023.

• MENDONÇA, BRUNO H. S. ; DE MORAES, ELIZANE E. ; KIRCH, ALEXSANDRO ; Batista, Ronaldo J. C. ; de Oliveira, Alan B. ; BARBOSA, MARCIA C. ; Chacham, Hélio . Flow through Deformed Carbon Nanotubes Predicted by Rigid and Flexible Water Models. JOURNAL OF PHYSICAL CHEMISTRY B , v. 127, p. 8634-8643, 2023.

• BARCELOS, INGRID D. ; DE OLIVEIRA, RAPHAELA ; SCHLEDER, GABRIEL R. ; Matos, Matheus J. S. ; LONGUINHOS, RAPHAEL ; RIBEIRO-SOARES, JENAINA ; Barboza, Ana Paula M. ; Prado, Mariana C. ; PINTO, ELISÂNGELA S. ; GOBATO, YARA GALVÃO ; Chacham, Hélio ; Neves, Bernardo R. A. ; CADORE, ALISSON R. . Phyllosilicates as earth-abundant layered materials for electronics and optoelectronics: Prospects and challenges in their ultrathin limit. JOURNAL OF APPLIED PHYSICS , v. 134, p. 090902, 2023.

• FERRARI, GUSTAVO A. ; Chacham, Helio ; de Oliveira, Alan B. ; Matos, Matheus J. S. ; Batista, Ronaldo J. C. ; MEIRELES, LEONEL M. ; Barboza, Ana Paula M. ; SILVESTRE, IVE ; Neves, Bernardo R. A. ; Lacerda, Rodrigo G. . Graphene nanoencapsulation action at an air/lipid interface. JOURNAL OF MATERIALS SCIENCE , v. 57, p. 6223-6232, 2022.

• PEREIRA, NEUMA M. ; REZENDE, NATÁLIA P. ; CUNHA, THIAGO H. R. ; Barboza, Ana P. M. ; SILVA, GLAURA G. ; LIPPROSS, DANIEL ; Neves, Bernardo R. A. ; Chacham, Hélio ; FERLAUTO, ANDRE S. ; Lacerda, Rodrigo G. . Aerosol-Printed MoS 2 Ink as a High Sensitivity Humidity Sensor. ACS Omega , v. 7, p. 9388-9396, 2022.

• ROSA, BÁRBARA L. T. ; FUJISAWA, KAZUNORI ; SANTOS, JOYCE C. C. ; ZHANG, TIANYI ; Matos, Matheus J. S. ; SOUSA, FREDERICO B. ; BARBOSA, TIAGO C. ; LAFETA, LUCAS ; RAMOS, SÉRGIO L. L. M. ; CARVALHO, BRUNO R. ; Chacham, Helio ; Neves, Bernardo R. A. ; TERRONES, MAURICIO ; MALARD, LEANDRO M. . Investigation of spatially localized defects in synthetic WS 2 monolayers. PHYSICAL REVIEW B , v. 106, p. 115301, 2022.

• DE OLIVEIRA, RAPHAELA ; GUALLICHICO, LUIS A.G. ; POLICARPO, EDUARDO ; CADORE, ALISSON R. ; FREITAS, RAUL O. ; DA SILVA, FRANCISCO M.C. ; DE C. TEIXEIRA, VERÔNICA ; PANIAGO, ROBERTO M. ; Chacham, Helio ; MATOS, MATHEUS J.S. ; MALACHIAS, ANGELO ; KRAMBROCK, KLAUS ; BARCELOS, INGRID D. . High throughput investigation of an emergent and naturally abundant 2D material: Clinochlore. APPLIED SURFACE SCIENCE , v. 599, p. 153959, 2022.

• MORAES, ELIZANE E. DE ; PINTO, ALYSSON A. ; Batista, Ronaldo J. C. ; de Oliveira, Alan B. ; Chacham, Helio . Charge and Spin Current Rectification through Functionalized Boron Nitride Bilayers. Journal of Physical Chemistry C , v. 126, p. 18383-18392, 2022.

• ALENCAR, ANANIAS B ; DE OLIVEIRA, ALAN B ; Chacham, Helio . Crystal reorientation and plastic deformation of single-layer MoS 2 and MoSe 2 under uniaxial stress. JOURNAL OF PHYSICS-CONDENSED MATTER , v. 33, p. 125401, 2021.

• SILVEIRA, ORLANDO J. ; RIBEIRO, GUILHERME A. S. ; Chacham, Helio . Activation of topological insulator phase in kagomé-type bilayers by interlayer coupling: The cases of Ni(CO) 4 and Pd(CO) 4. APPLIED PHYSICS LETTERS , v. 116, p. 103103, 2020.

• MEIRELES, LEONEL M. ; NETO, ELIEL G. S. ; FERRARI, GUSTAVO A. ; NEVES, PAULO A. A. ; GADELHA, ANDREIJ C. ; SILVESTRE, IVE ; TANIGUCHI, TAKASHI ; WATANABE, KENJI ; Chacham, Helio ; Neves, Bernardo R. A. ; Campos, Leonardo C. ; Lacerda, Rodrigo G. . Graphene Electromechanical Water Sensor: The Wetristor. Advanced Electronic Materials , v. 6, p. 1901167, 2020.

• BATISTA, RONALDO J C ; DIAS, RAFAEL F ; BARBOZA, ANA P M ; DE OLIVEIRA, ALAN B ; MANHABOSCO, TAISE M ; GOMES-SILVA, THIAGO R ; MATOS, MATHEUS J S ; GADELHA, ANDREIJ C ; RABELO, CASSIANO ; CANÇADO, LUIZ G L ; Jorio, Ado ; Chacham, Hélio ; NEVES, BERNARDO R A . Nanomechanics of few-layer materials: do individual layers slide upon folding?. Beilstein Journal of Nanotechnology , v. 11, p. 1801-1808, 2020.

• Chacham, Hélio ; SANTOS, JOYCE C. C. ; PACHECO, FLÁVIA G. ; SILVA, DIEGO L. ; MARTINS, ROZANA M. ; DEL?BOCCIO, JESSICA P. ; SOARES, EDER M. ; ALTOÉ, RODRIGO ; FURTADO, CLASCIDIA A. ; PLENTZ, FLÁVIO ; Neves, Bernardo R. A. ; CANÇADO, LUIZ G. . Controlling the Morphology of Nanoflakes Obtained by Liquid-Phase Exfoliation: Implications for the Mass Production of 2D Materials. ACS Applied Nano Materials , v. 3, p. 12095-12105, 2020.

• SILVEIRA, ORLANDO J ; DE CARVALHO, LUIZ C ; ALVES, HORACIO W L ; Chacham, Helio . Interplay between magnetic, metal/insulator and topological phases in Hg 1− x Mn x Te alloys: prediction of a ferromagnetic Weyl semimetal at x --=--0.25. JOURNAL OF PHYSICS-CONDENSED MATTER , v. 31, p. 435502, 2019.

• Nascimento, Regiane ; MORAES, ELIZANE E. ; MATOS, MATHEUS J.S. ; PRENDERGAST, DAVID ; MANHABOSCO, TAÍSE MATTE ; de Oliveira, Alan B. ; Chacham, Helio ; BATISTA, RONALDO J.C. . Graphene/h-BN In-Plane Heterostructures: Stability, Electronic and Transport Properties. Journal of Physical Chemistry C , v. 123, p. 18600, 2019.

• PEREIRA, C L ; CADORE, A R ; REZENDE, N P ; GADELHA, A ; SOARES, E A ; CHACHAM, H ; CAMPOS, L C ; LACERDA, R G . Reversible doping of graphene field effect transistors by molecular hydrogen: the role of the metal/graphene interface. 2D Materials , v. 6, p. 025037, 2019.

• Barboza, Ana P.M. ; SOUZA, ALAN C.R. ; MATOS, MATHEUS J.S. ; BRANT, JULIANA C. ; BARBOSA, TIAGO C. ; Chacham, Helio ; MAZZONI, MARIO S.C. ; Neves, Bernardo R.A. . Graphene/h-BN heterostructures under pressure: From van der Waals to covalent. CARBON , v. 155, p. 108-113, 2019.

• Chacham, Helio ; BARBOZA, ANA PAULA M ; DE OLIVEIRA, ALAN B ; DE OLIVEIRA, CAMILLA K ; BATISTA, RONALDO J C ; NEVES, BERNARDO R A . Universal deformation pathways and flexural hardening of nanoscale 2D-material standing folds. NANOTECHNOLOGY , v. 29, p. 095704, 2018.

• DIAS, RAFAEL F. ; da Rocha Martins, Jonathan ; Chacham, Hélio ; de Oliveira, Alan B. ; MANHABOSCO, TAÍSE M. ; Batista, Ronaldo J. C. . Nanoporous Graphene and H-BN from BCN Precursors: First-Principles Calculations. Journal of Physical Chemistry C , v. 122, p. 3856-3864, 2018.

• CADORE, A.R. ; MANIA, E. ; ALENCAR, A.B. ; REZENDE, N.P. ; DE OLIVEIRA, S. ; WATANABE, K. ; TANIGUCHI, T. ; Chacham, H. ; CAMPOS, L.C. ; LACERDA, R.G. . Enhancing the response of NH 3 graphene-sensors by using devices with different graphene-substrate distances. SENSORS AND ACTUATORS B-CHEMICAL , v. 266, p. 438-446, 2018.

• BARCELOS, INGRID D. ; CADORE, ALISSON R. ; ALENCAR, ANANIAS B. ; MAIA, FRANCISCO C. B. ; MANIA, EDRIAN ; OLIVEIRA, RAFAEL F. ; BUFON, CARLOS C. B. ; MALACHIAS, ÂNGELO ; FREITAS, RAUL O. ; MOREIRA, ROBERTO L. ; Chacham, Hélio . Infrared Fingerprints of Natural 2D Talc and Plasmon-Phonon Coupling in Graphene-Talc Heterostructures. ACS Photonics , v. 5, p. 1912-1918, 2018.

• FERRARI, GUSTAVO A. ; de Oliveira, Alan B. ; SILVESTRE, IVE ; Matos, Matheus J. S. ; Batista, Ronaldo J. C. ; Fernandes, Thales F. D. ; MEIRELES, LEONEL M. ; ELIEL, GOMES S. N. ; Chacham, Helio ; Neves, Bernardo R. A. ; Lacerda, Rodrigo G. . Apparent Softening of Wet Graphene Membranes on a Microfluidic Platform. ACS Nano , v. 12, p. 4312-4320, 2018.

• Barboza, Ana P. M. ; MATOS, MATHEUS J.S. ; Chacham, Helio ; BATISTA, RONALDO JUNIO CAMPOS ; de Oliveira, Alan B. ; Mazzoni, Mario S. C. ; Neves, Bernardo R. A. . Compression Induced Modification of Boron Nitride Layers: a Conductive Two-Dimensional BN Compound. ACS Nano , v. 12, p. 5866-5872, 2018.

• SILVEIRA, ORLANDO J ; Chacham, Helio . Electronic and spin-orbit properties of the kagome MOF family M 3 (1,2,5,6,9, 10-triphenylenehexathiol) 2 (M--=--Ni, Pt, Cu and Au). Journal of Physics. Condensed Matter (Print) , v. 29, p. 09LT01, 2017.

• GONÇALVES, JULIANA APARECIDA ; Nascimento, Regiane ; Matos, Matheus J. S. ; DE OLIVEIRA, ALAN BARROS ; Chacham, Helio ; BATISTA, RONALDO JUNIO CAMPOS . Edge-Reconstructed, Few-Layered Graphene Nanoribbons: Stability and Electronic Properties. Journal of Physical Chemistry C , v. 121, p. 5836-5840, 2017.

• MANIA, E ; ALENCAR, A B ; CADORE, A R ; CARVALHO, B R ; WATANABE, K ; TANIGUCHI, T ; Neves, B R A ; CHACHAM, H ; CAMPOS, L C . Spontaneous doping on high quality talc-graphene-hBN van der Waals heterostructures. 2D Materials , v. 4, p. 031008, 2017.

• SILVEIRA, ORLANDO J ; LIMA, ÉRIKA N ; Chacham, Helio . Bilayers of Ni3C12S12 and Pt3C12S12: graphene-like 2D topological insulators tunable by electric fields. JOURNAL OF PHYSICS-CONDENSED MATTER , v. 29, p. 465502, 2017.

• SILVEIRA, ORLANDO J. ; Alexandre, Simone S. ; Chacham, Helio . Electron States of 2D Metal-Organic and Covalent-Organic Honeycomb Frameworks: Ab Initio Results and a General Fitting Hamiltonian. Journal of Physical Chemistry. C , v. 120, p. 19796-19803, 2016.

• LONGUINHOS, R. ; LÚCIO, A. D. ; Chacham, H. ; ALEXANDRE, S. S. . Charge-transfer optical absorption mechanism of DNA:Ag-nanocluster complexes. PHYSICAL REVIEW E , v. 93, p. 052413, 2016.

• LIMA, AMAURI LIBÉRIO DE ; MÜSSNICH, LUCAS A M ; MANHABOSCO, TAÍSE M ; Chacham, Hélio ; BATISTA, RONALDO J C ; OLIVEIRA, ALAN BARROS DE . Soliton instability and fold formation in laterally compressed graphene. Nanotechnology (Bristol. Print) , v. 26, p. 045707, 2015.

• Oliveira, Camilla K. ; GOMES, EGLEIDSON F. A. ; Prado, Mariana C. ; ALENCAR, THONIMAR V. ; Nascimento, Regiane ; MALARD, LEANDRO M. ; Batista, Ronaldo J. C. ; de Oliveira, Alan B. ; Chacham, Helio ; DE PAULA, ANA M. ; Neves, Bernardo R. A. . Crystal-oriented wrinkles with origami-type junctions in few-layer hexagonal boron nitride. Nano Research (Print) , v. 8, p. 1680-1688, 2015.

• Nascimento, Regiane ; MARTINS, JONATHAN DA ROCHA ; Batista, Ronaldo J. C. ; Chacham, Helio . Band Gaps of BN-Doped Graphene: Fluctuations, Trends, and Bounds. Journal of Physical Chemistry. C , v. 119, p. 5055-5061, 2015.

• BRITO, W. H. ; da Silva-Araújo, Joice ; Chacham, H. . g-C 3 N 4 and Others: Predicting New Nanoporous Carbon Nitride Planar Structures with Distinct Electronic Properties. Journal of Physical Chemistry. C , v. 119, p. 150812112403004, 2015.

• MÜSSNICH, LUCAS C. P. A. M. ; Chacham, Hélio ; SOARES, JAQUELINE S. ; Barbosa Neto, Newton M. ; SHADMI, NITZAN ; JOSELEVICH, ERNESTO ; CANÇADO, LUIZ GUSTAVO ; Jorio, Ado . Strain Discontinuity, Avalanche, and Memory in Carbon Nanotube Serpentine Systems. Nano Letters (Print) , v. 15, p. 5899-5904, 2015.

• de Oliveira, Alan B. ; Chacham, Hélio ; DOS SANTOS SOARES, JAQUELINE ; MANHABOSCO, TAÍSE M. ; BATISTA, RONALDO J.C. . Vibrational G peak splitting in laterally functionalized single wall carbon nanotubes: Theory and molecular dynamics simulations. Carbon (New York) , v. 96, p. 616-621, 2015.

• PRADO, MARIANA C ; Nascimento, Regiane ; FARIA, BARBARA E N ; MATOS, MATHEUS J S ; Chacham, Helio ; NEVES, BERNARDO R A . Nanometre-scale identification of grain boundaries in MoS through molecular decoration. Nanotechnology (Bristol. Print) , v. 26, p. 475702, 2015.

• ALENCAR, ANANIAS B ; BARBOZA, ANA PAULA M ; ARCHANJO, BRÁULIO S ; Chacham, Helio ; NEVES, BERNARDO R A . Experimental and theoretical investigations of monolayer and few-layer talc. 2D Materials , v. 2, p. 015004, 2015.

• BATISTA, RONALDO JUNIO CAMPOS ; CARARA, SABRINA SILVA ; MANHABOSCO, TAISE MATTE ; Chacham, Helio . A Ferromagnetic Pure Carbon Structure Composed of Graphene and Nanotubes: First-Principles Calculations. Journal of Physical Chemistry. C , v. 118, p. 140326174715005, 2014.

• Batista, Ronaldo J. C. ; DE OLIVEIRA, ALAN BARROS ; Carara, Sabrina S. ; Chacham, Hélio . Controlling the Electrical Response of Carbon Nanotubes Deposited on Diamond through the Application of Electric Fields. Journal of Physical Chemistry. C , v. 118, p. 140905073557001, 2014.

• PARREIRAS, D. E. ; SOARES, E. A. ; ABREU, G. J. P. ; BUENO, T. E. P. ; FERNANDES, W. P. ; DE CARVALHO, V. E. ; CARARA, S. S. ; Chacham, H. ; PANIAGO, R. . Graphene/Ni(111) surface structure probed by low-energy electron diffraction, photoelectron diffraction, and first-principles calculations. Physical Review. B, Condensed Matter and Materials Physics , v. 90, p. 155454, 2014.

• BRITO, W H ; CHACHAM, H ; KAGIMURA, R ; MIWA, R H . Electronic confinement in graphene ruled by N doped extended defects. Nanotechnology (Bristol. Print) , v. 25, p. 245706, 2014.

• Matos, M J S ; Mazzoni, M S C ; CHACHAM, H . Graphene-boron nitride superlattices: the role of point defects at the BN layer. Nanotechnology (Bristol. Print) , v. 25, p. 165705, 2014.

• AZEVEDO, S. ; ROSAS, A. ; MACHADO, M. ; KASCHNY, J.R. ; Chacham, H. . Effects of deformation on the electronic properties of B¿C¿N nanotubes. Journal of Solid State Chemistry (Print) , v. 197, p. 254-260, 2013.

• da Silva-Araújo, Joice ; NASCIMENTO, A J M ; Chacham, Hélio ; NUNES, R W . Non-hexagonal-ring defects and structures induced by healing and strain in graphene and functionalized graphene. Nanotechnology (Bristol. Print) , v. 24, p. 035708, 2013.

• GOMES, L. C. ; ALEXANDRE, S. S. ; Chacham, H. ; Nunes, R. W. . Stability of Edges and Extended Defects on Boron Nitride and Graphene Monolayers: The Role of Chemical Environment. Journal of Physical Chemistry. C , v. 117, p. 11770-11779, 2013.

• SILVESTRE, IVE ; DE MORAIS, EVANDRO A. ; MELO, ANGELICA O. ; Campos, Leonardo C. ; GONCALVES, ALEM-MAR B. ; CADORE, ALISSON R. ; FERLAUTO, ANDRE S. ; Chacham, Helio ; Mazzoni, Mario S. C. ; Lacerda, Rodrigo G. . Asymmetric Effect of Oxygen Adsorption on Electron and Hole Mobilities in Bilayer Graphene: Long- and Short-Range Scattering Mechanisms. ACS Nano , v. 7, p. 6597-6604, 2013.

• SOARES, E. A. ; ABREU, G. J. P. ; CARARA, S. S. ; PANIAGO, R. ; DE CARVALHO, V. E. ; Chacham, H. . Graphene-protected Fe layers atop Ni(111): Evidence for strong Fe-graphene interaction and structural bistability. Physical Review. B, Condensed Matter and Materials Physics , v. 88, p. 165410-1-165410-7, 2013.

• Righi, A. ; Venezuela, P. ; Chacham, H. ; COSTA, S.D. ; Fantini, C. ; RUOFF, R.S. ; Colombo, L. ; BACSA, W.S. ; PIMENTA, M.A. . Resonance Raman spectroscopy in twisted bilayer graphene. Solid State Communications , v. 175-176, p. 13-17, 2013.

• Barboza, Ana Paula M. ; Carara, Sabrina S. ; Batista, Ronaldo J. C. ; Chacham, Helio ; Neves, Bernardo R. A. . Controlling the Electrical Behavior of Semiconducting Carbon Nanotubes via Tube Contact. Small (Weinheim. Print) , v. 8, p. 220-224, 2012.

• Kagimura, R. ; Mazzoni, M. S. ; Chacham, H. . Knots in a graphene nanoribbon. Physical Review. B, Condensed Matter and Materials Physics , v. 85, p. 125415, 2012.

• Oliveira, C K ; Matos, M J S ; Chacham, H. ; Mazzoni, M S C ; Neves, B R A . Anomalous response of supported few-layer hexagonal boron nitride to DC electric fields: a confined water effect?. Nanotechnology (Bristol. Print) , v. 23, p. 175703, 2012.

• Barboza, Ana Paula M. ; Chacham, Helio ; Oliveira, Camilla K. ; Fernandes, Thales F. D. ; Ferreira, Erlon H. Martins ; Archanjo, Braulio S. ; Batista, Ronaldo J. C. ; de Oliveira, Alan B. ; Neves, Bernardo R. A. . Dynamic Negative Compressibility of Few-Layer Graphene, h-BN, and MoS. Nano Letters (Print) , v. 12, p. 2313-2317, 2012.

• Martins, Jonathan ; Chacham, Helio . N-rich B-C-N layers: From segregated alloy to solid solution. Physical Review. B, Condensed Matter and Materials Physics , v. 86, p. 075421, 2012.

• ARAUJO, P. T. ; Barbosa Neto, N. M. ; Chacham, H. ; CARARA, S. S. ; Soares, J. S. ; Souza, A. D. ; Cançado, L. G. ; de Oliveira, A. B. ; Batista, R. J. C. ; Joselevich, E. ; Dresselhaus, M. S. ; JORIO, A. . In Situ Atomic Force Microscopy Tip-Induced Deformations and Raman Spectroscopy Characterization of Single-Wall Carbon Nanotubes. Nano Letters (Print) , v. 12, p. 4110-4116, 2012.

• da Rocha Martins, Jonathan ; Chacham, H. . Disorder and Segregation in B?C?N Graphene-Type Layers and Nanotubes: Tuning the Band Gap. ACS Nano , v. 5, p. 385-393, 2011.

• Prado, Mariana C. ; Nascimento, Regiane ; Moura, Luciano G. ; Matos, Matheus J. S. ; Mazzoni, Mario S. C. ; Cancado, Luiz G. ; Chacham, Helio ; Neves, Bernardo R. A. . Two-Dimensional Molecular Crystals of Phosphonic Acids on Graphene. ACS Nano , v. 5, p. 394-398, 2011.

• Barboza, Ana P. M. ; Guimaraes, Marcos H. D. ; Massote, Daniel V. P. ; Campos, Leonardo C. ; Barbosa Neto, Newton M. ; Cancado, Luiz G. ; Lacerda, Rodrigo G. ; Chacham, Helio ; Mazzoni, Mario S. C. ; Neves, Bernardo R. A. . Room-Temperature Compression-Induced Diamondization of Few-Layer Graphene. Advanced Materials (Weinheim Print) , v. 23, p. 3014-3017, 2011.

• Lino, Andre A. ; Chacham, Helio ; Mazzoni, Mario S. C. . Edge States and Half-Metallicity in TiO Nanoribbons. Journal of physical chemistry. C , v. 115, p. 110830085843039, 2011.

• Righi, A. ; Costa, S. ; Chacham, H. ; Fantini, C. ; Venezuela, P. ; Magnuson, C. ; Colombo, L. ; Bacsa, W. ; Ruoff, R. ; Pimenta, M. . Graphene Moiré patterns observed by umklapp double-resonance Raman scattering. Physical Review. B, Condensed Matter and Materials Physics , v. 84, p. 241409, 2011.

• R. J. C. Batista ; MAZZONI, M. S. C. ; CHACHAM, H. . First-principles investigation of electrochemical properties of gold nanoparticles. Nanotechnology (Bristol) , v. 21, p. 065705, 2010.

• Diniz, Eduardo M. ; Nunes, Ricardo W. ; Chacham, Hélio ; Mazzoni, Mário S. C. . Bistability, softening, and quenching of magnetic moments in Ni-filled carbon nanotubes. Physical Review. B, Condensed Matter and Materials Physics , v. 81, p. 153413, 2010.

• da Silva-Araújo, Joice ; Chacham, H. ; Nunes, R. W. . Gap opening in topological-defect lattices in graphene. Physical Review. B, Condensed Matter and Materials Physics , v. 81, p. 193405, 2010.

• Barboza, Ana P.M. ; Gomes, Ana P. ; Chacham, Helio ; Neves, Bernardo R.A. . Probing electric characteristics and sorting out metallic from semiconducting carbon nanotubes. Carbon (New York) , v. 48, p. 3287-3292, 2010.

• Jorio, Ado ; de Sá Barreto, Francisco César ; de Sampaio, José Francisco ; Chacham, Hélio . Brazilian science towards a phase transition. Nature Materials , v. 9, p. 528-531, 2010.

• Martins, J. R. ; R. J. C. Batista ; Chacham, H. . Doped Assemblies of Gold Nanoparticles: Structural and Electronic Properties. Journal of the American Chemical Society (Print) , v. 132, p. 11929-11933, 2010.

• Barboza, A. P. M. ; CHACHAM, H. ; Neves, B. R. A. . Universal Response of Single-Wall Carbon Nanotubes to Radial Compression. Physical Review Letters , v. 102, p. 025501, 2009.

• S. S. Carara ; R. J. C. Batista ; Chacham, H. . Modifications in graphene electron states due to a deposited lattice of Au nanoparticles: Density functional calculations. Physical Review. B, Condensed Matter and Materials Physics , v. 80, p. 115435, 2009.

• Felicissimo, V. C. ; Martins, J. R. ; Boldt, I. S. ; Chacham, H. . Molecular switches activated by electromagnetic pulses: First-principles calculations. Physical Review. A , v. 80, p. 063410, 2009.

• Alexandre, Simone S. ; Mazzoni, Mário S. C. ; Chacham, H. . Edge States and Magnetism in Carbon Nanotubes with Line Defects. Physical Review Letters , v. 100, p. 146801, 2008.

• Barboza, A. P. M. ; Gomes, A. P. ; Archanjo, B. S. ; ARAUJO, P. T. ; JORIO, A. ; Ferlauto, A. S. ; MAZZONI, M. S. C. ; Chacham, H. ; Neves, B. R. A. . Deformation Induced Semiconductor-Metal Transition in Single Wall Carbon Nanotubes Probed by Electric Force Microscopy. Physical Review Letters , v. 100, p. 256804, 2008.

• R. J. C. Batista ; MAZZONI, M. S. C. ; CHACHAM, H. . Boron nitride fullerene B36N36 doped with transition metal atoms: First-principles calculations. Physical Review B - Condensed Matter and Materials Physics , v. 75, p. 035417, 2007.

• R. J. C. Batista ; P. Ordejon ; CHACHAM, H. ; E. Artacho . Resistive and rectifying effects of pulling gold atoms at thiol-gold nanocontacts. Physical Review B - Condensed Matter and Materials Physics , v. 75, p. 041402, 2007.

• R. Kagimura ; R. W. Nunes ; CHACHAM, H. . Surface Dangling-Bond States and Band Lineups in Hydrogen-Terminated Si, Ge, and Ge/Si Nanowires. Physical Review Letters , v. 98, p. 026801, 2007.

• ARAUJO, P. T. ; DOORN, S. K. ; KILINA, S. ; TRETIAK, S. ; EINARSSON, E. ; MARUYAMA, S. ; CHACHAM, H. ; PIMENTA, M. A. ; JORIO, A. . Third and Fourth Optical Transitions in Semiconducting Carbon Nanotubes. Physical Review Letters , v. 98, p. 067401, 2007.

• MAZZONI, M. S. C. ; R. W. Nunes ; Sergio Azevedo ; CHACHAM, H. . Electronic structure and energetics of BxCyNz layered structures. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 73, n.7, p. 073108, 2006.

• R. J. C. Batista ; MAZZONI, M. S. C. ; I. L. Garzon ; M. R. Beltran ; CHACHAM, H. . Electron states in a lattice of Au nanoparticles: The role of strain and functionalization. Physical Review Letters , E.U.A., v. 96, n.11, p. 116802, 2006.

• R. J. C. Batista ; MAZZONI, M. S. C. ; CHACHAM, H. . A theoretical study of the stability trends of boron nitride fullerenes. Chemical Physics Letters , E.U.A., v. 421, p. 246-250, 2006.

• JORIO, A. ; ARAUJO, P. T. ; DOORN, S. K. ; MARUYAMA, S. ; CHACHAM, H. ; PIMENTA, M. A. . The Kataura plot over broad energy and diameter ranges. Physica Status Solidi. B, Basic Research , v. 243, p. 3117-3121, 2006.

• R. J. C. Batista ; MAZZONI, M. S. C. ; L. O. Ladeira ; CHACHAM, H. . First-principles investigation of Au-covered carbon fullerenes. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 72, p. 085447, 2005.

• R. Kagimura ; R. W. Nunes ; CHACHAM, H. . Structures of Si and Ge nanowires in the subnanometer range. Physical Review Letters , E.U.A., v. 95, n.11, p. 115502, 2005.

• CURY, L. A. ; P. S. S. Guimaraes ; R. L. Moreira ; CHACHAM, H. . Asymmetric line shape in the emission spectra of conjugated polymer thin films: An experimental signature of one-dimensional electronic states. Journal of Chemical Physics , E.U.A., v. 121, n.8, p. 3836-3839, 2004.

• Sergio Azevedo ; MAZZONI, M. S. C. ; R. W. Nunes ; CHACHAM, H. . Stability of antiphase line defects in nanometer-sized boron nitride cones. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 70, n.20, p. 205412, 2004.

• Sergio Azevedo ; MAZZONI, M. S. C. ; CHACHAM, H. ; R. W. Nunes . Electron states in boron nitride nanocones. Applied Physics Letters , E.U.A., v. 82, n.14, p. 2323-2325, 2003.

• M.VERISSIMO-ALVES, ; KOILLER, B. ; CHACHAM, H. ; CAPAZ, R. B. . Electromechanical effects in carbon nanotubes: Ab initio and analytical tight-binding calculations. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 67, n.16, p. 161401, 2003.

• S. S. Alexandre ; J. M. Soler ; E. Artacho ; CHACHAM, H. . Small polarons in dry DNA. Physical Review Letters , E.U.A., v. 91, n.10, p. 108105, 2003.

• R. Kagimura ; CHACHAM, H. ; T. M. Schmidt ; MIWA, R. H. . Localization of intrinsic defects in CaF­2-BaF2 superlattices. Applied Physics Letters , v. 83, p. 4154-4156, 2003.

• CAPAZ, R. B. ; Chacham, H. . Nanotubos e a nova era do carbono. Ciência Hoje , v. 33, p. 20-27, 2003.

• T. M. Schmidt ; MIWA, R. H. ; Walter Orellana ; CHACHAM, H. . Stacking fault effects in Mg-doped GaN. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 65, p. 033205, 2002.

• S. S. Alexandre ; R. W. Nunes ; CHACHAM, H. . Energetics of the formation of dimers and solids of boron nitride fullerenes. Physical Review B - Condensed Matter and Materials Physics , v. 66, p. 085406, 2002.

• M.VERISSIMO-ALVES, ; CAPAZ, R. B. ; KOILLER, B. ; E. Artacho ; CHACHAM, H. . Ab initio studies of electromechanical effects in carbon nanotubes. Brazilian Journal of Physics , v. 32, n.2A, p. 427-429, 2002.

• M.VERISSIMO-ALVES, ; CAPAZ, R. B. ; KOILLER, B. ; E. Artacho ; CHACHAM, H. . Polarons in carbon nanotubes. Physical Review Letters , E.U.A., v. 86, n.15, p. 3372-3375, 2001.

• S. S. Alexandre ; CHACHAM, H. ; R. W. Nunes . Structure and energetics of boron nitride fullerenes: the role of stoichiometry. Physical Review B - Condensed Matter and Materials Physics , E.U.A, v. 63, n.4, p. 045402, 2001.

• Walter Orellana ; CHACHAM, H. . Stability of native defects in hexagonal and cubic boron nitride. Physical Review B - Condensed Matter and Materials Physics , E.U.A., v. 63, n.12, p. 125205, 2001.

• MAZZONI, M. S. C. ; CHACHAM, H. . Bandgap closure of a flattened semicoonductor carbon nanotube: A first-principles study. Applied Physics Letters , E.U.A., v. 76, p. 1561-1563, 2000.

• MAZZONI, M. S. C. ; CHACHAM, H. . Atomic restructuring and localized electron states in a bent carbon nanotube: A first-principles study. Physical Review B - Solid State , E.U.A., v. 61, p. 7312-7315, 2000.

• CHACHAM, H. ; KLEINMAN, L. . Instabilities in diamond under high shear stress. Physical Review Letters , E.U.A., v. 85, n.23, p. 4904-4907, 2000.

• W. Orellana ; CHACHAM, H. . Energetics of carbon and oxygen impurities and their interaction with vacancies in cubic boron nitride. Physical Review B - Solid State , E.U.A., v. 62, n.15, p. 10135-10141, 2000.

• RUBINGER, R. M. ; OLIVEIRA, A. G. ; RIBEIRO, G. M. ; BEZERRA, J. C. ; MOREIRA, M. V. B. ; CHACHAM, H. . Field-enhanced trapping in deep levels by multiple-phonon emission in semi-insulating GaAs. Journal of Applied Physics , E.U.A., v. 88, p. 6541-6544, 2000.

• MENCHERO, J. G. ; CAPAZ, R. B. ; KOILLER, B. ; CHACHAM, H. . A Tight-Binding Scheme For Impurity States In Semiconductors. Physical Review B - Solid State , v. 59, p. 2722-2725, 1999.

• MAZZONI, M. S. C. ; CHACHAM, H. ; P. Ordejon ; D. Sanchez-Portal ; J. M. Soler ; E. Artacho . Energetics of the oxidation and opening of a carbon nanotube. Physical Review B - Solid State , v. 60, n.4, p. R2208-R2211, 1999.

• KOILLER, B. ; CAPAZ, R. B. ; CHACHAM, H. . Segregation, interface morphology, and the optical properties of GaAs/AlAs quantum wells: A theoretical study. Physical Review B - Solid State , v. 60, n.3, p. 1787-1791, 1999.

• S. S. Alexandre ; MAZZONI, M. S. C. ; CHACHAM, H. . Stability, geometry, and electronic structure of the boron nitride B36N36 fullerene. Applied Physics Letters , v. 75, n.1, p. 61-63, 1999.

• W. Orellana ; CHACHAM, H. . Atomic geometry and energetics of vacancies and antisites in cubic boron nitride. Applied Physics Letters , v. 74, n.20, p. 2984-2986, 1999.

• RUBINGER, R. M. ; OLIVEIRA, A. G. ; RIBEIRO, G. M. ; BEZERRA, J. C. ; MOREIRA, M. V. B. ; CHACHAM, H. . Electro-optic recovery of the photoquenching effect. Applied Physics Letters , v. 75, n.9, p. 1252-1254, 1999.

• CAPAZ, R. B. ; T. G. Dargam ; MARTINS, A. S. ; CHACHAM, H. ; KOILLER, B. . Semiconductor heterostructures with non-ideal interfaces: Electronic Structure and optical properties. Physica Status Solidi. A, Applied Research , v. 173, p. 235-246, 1999.

• CHACHAM, H. ; REIS, S. P. ; KOILLER, B. . Band-Gap Closure Of H2-He Mixtures Under Pressure. Journal of Chemical Physics , v. 109, n.10, p. 4047-4051, 1998.

• MIWA, R. H. ; FERRAZ, A. C. ; RODRIGUES, W. N. ; CHACHAM, H. . Adsorption And Dimer Exchange Processes In Surfactant-Mediated Epitaxial Growth Of Gaas/Inas. Surface Science , v. 415, n.1, p. 20-28, 1998.

• VIANNA, R. O. ; CHACHAM, H. . Valence Bonds In Solid Hydrogen Under Pressure. Journal of Chemical Physics , v. 109, p. 4047-4051, 1998.

• SAFAR, G. A. M. ; RODRIGUES, W. N. ; CURY, L. A. ; CHACHAM, H. ; MOREIRA, M. V. B. ; FREIRE, S. L. S. ; OLIVEIRA, A. G. . Effect Of Te As A Surfactant On The Optical Properties Of Inas Self-Assembled Quantum Dots. Applied Physics Letters , v. 71, n.4, p. 521-523, 1997.

• CORREA, J. A. ; OLIVEIRA, A. G. ; SILVA, M. I. N. ; MOREIRA, M. V. B. ; RIBEIRO, G. M. ; CHACHAM, H. . Temperature Dependence Of The Equilibrium Hall Concentration In Silicon Planar-Doped Gaas Samples. Solid State Communications , v. 98, n.12, p. 1063-1068, 1996.

• KOILLER, B. ; MARTINS, A. S. ; CHACHAM, H. . Optical Effects Of Interdiffusion In Gaas/Alas Heterostructures: Atomic Scale Calculations. Applied Physics Letters , v. 69, n.16, p. 2423-2425, 1996.

• CHAVES, A. S. ; CHACHAM, H. . Negative Photoconductivity In Semiconductor Heterostructures. Applied Physics Letters , E. U. A., v. 66, n.6, p. 727-729, 1995.

• BEZERRA, J. C. ; OLIVEIRA, A. G. ; MAZZONI, M. S. C. ; CHACHAM, H. . Use Of Tthe Dx Center As A Probe To Study The Profile Of Si Impurities In Planar-Doped Gaas. Journal of Applied Physics , E. U. A., v. 77, n.7, p. 3283-3287, 1995.

• SURH, M. P. ; CHACHAM, H. ; LOUIE, S. G. . Quasiparticle Excitation Energies For The F Center Defect In Licl. Physical Review B - Solid State , E. U. A., v. 51, n.12, p. 7464-7470, 1995.

• OLIVEIRA, A. G. ; RIBEIRO, G. M. ; SOARES, D. A. W. ; CORREA, J. A. ; SILVA, M. I. N. ; CHACHAM, H. . Photoconductivity And N- To P-Type Transition In Silicon Planar-Doped Gaas Structures With A Doped Cap Layer. Journal of Applied Physics , E. U. A., v. 78, n.4, p. 2659-2665, 1995.

• CHACHAM, H. ; KOILLER, B. . Band Gap Closure Of Ar(H2)2 Under Pressure. Physical Review B - Solid State , E. U. A., v. 52, n.9, p. 6147-6149, 1995.

• OLIVEIRA, A. G. ; RIBEIRO, G. M. ; SOARES, D. A. W. ; CHACHAM, H. . Competition Between Negative And Positive Photoconductivity In Silicon Planar-Doped Gaas. Applied Physics Letters , E. U. A., v. 64, n.17, p. 2258-2260, 1994.

• GOMES, O. A. ; CHACHAM, H. ; MOHALLEM, J. R. . Variational Calculations For The Bound-Unbound Transition Of The Yukawa Potential. Physical Review. A , E. U. A., v. 50, n.1, p. 228-231, 1994.

• CHACHAM, H. ; FALICOV, L. M. ; KOILLER, B. . Orientational Disorder And The Band Gap Of Solid Molecular Hyddrogen Under Pressure. Physical Review B - Solid State , E. U. A., v. 50, p. 7195, 1994.

• MOHALLEM, J. R. ; VIANNA, R. O. ; CHACHAM, H. . First-Principles Molecular Dynamics. Brazilian Journal of Physics , Brasil, v. 24, p. 933, 1994.

• VIANNA, R. O. ; CHACHAM, H. ; MOHALLEM, J. R. . Fast Hartree-Fock Calculations By Simulated Dynamics. Ii. An Efficient, Stable And Accurate Algorithm For Molecules. Journal of Chemical Physics , E.U.A., v. 98, n.8, p. 6395-6400, 1993.

• CHACHAM, H. ; ZHU, X. ; LOUIE, S. G. . Pressure-Induced Metal-Insulator Transition In Solid Xenon And Hydrogen; A First-Principles Quasiparticle Study. Physical Review B - Solid State , E.U.A., v. 46, n.11, p. 6688-6699, 1992.

• VIANNA, R. O. ; CUSTODIO, R. ; CHACHAM, H. ; MOHALLEM, J. R. . Reliable Hellmann-Feynman Forces For Nuclei-Centered Gto Basis Of Standard Size. International Journal of Quantum Chemistry , E.U.A., v. S26, p. 311-318, 1992.

• CHACHAM, H. ; LOUIE, S. G. . Metallization Of Solid Hydrogen At Megabar Pressures: A First-Principles Quasiparticle Study. Physical Review Letters , E. U. A., v. 66, n.1, p. 64-67, 1991.

• CHACHAM, H. ; ZHU, X. ; LOUIE, S. G. . Metal-Insulator Transition In Solid Xenon At High Pressures. Europhysics Letters , Inglaterra, v. 14, n.1, p. 65-70, 1991.

• CHACHAM, H. ; MOHALLEM, J. R. . Fast Hartree-Fock Calculations By Simulated Dynamics Part I: Formulation And A Test Application. Molecular Physics , v. 70, n.3, p. 391-400, 1990.

• ALVES, H. W. L. ; CHACHAM, H. ; LEITE, J. R. . Electronic State Of A C-1s Core Exciton In Diamond. Solid State Communications , v. 67, n.5, p. 495-498, 1988.

• ASSALI, L. V. C. ; GOMES, V. M. S. ; LEITE, J. R. ; CHACHAM, H. ; ALVES, J. L. A. . Shallow Acceptor Action Of A C-H Pair In Silicon And Germanium. INST. PHYS. CONF. SER., v. 95, p. 453-458, 1988.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. ; LEITE, J. R. . Electronic Structure Of Cationic Core Excitons In Ii-Vi Semiconductors. Journal of Physics and Chemistry of Solids , v. 49, n.8, p. 969-973, 1988.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . Alkaly Atoms As Acceptor Impurities In Znse. Solid State Communications , v. 64, n.6, p. 863-866, 1987.

• CHACHAM, H. ; SILVA, E. G. ; GUENZBURGER, D. ; ELLIS, D. E. . Electronic Structure, Magnetic Properties, Mossbauer Isomer Shifts, And Hyperfine Fields Of Disordered Fe-Rich Fe-Al Alloys. Physical Review B - Solid State , v. 35, n.4, p. 1602-1608, 1987.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . Electronic Structure Of Cationic Substitutional Cu, Ag, Au, And The Metal Vacancy In Zns, Znse, And Cdte. Materials Science Forum , v. 10-12, p. 49-54, 1986.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . Microscopic Models For Cu, Ag, And Au Cationic Substitutional Impurities And The Metal Vacancy In Znse. Solid State Communications , v. 60, n.5, p. 411-414, 1986.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . The Noble Gas Atoms As Impurities In Silicon. INT. JOURNAL OF QUANTUM CHEM.: QUANTUM CHEM. SYMP., v. 20, p. 347-351, 1986.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . Study Of Some Electronic Properties Of The Bh4 Ion Through The Variational Cellular Method. Journal of Molecular Structure , v. 120, p. 207-211, 1985.

• BATISTA, F. A. ; PERSIANO, A. I. C. ; ALVES, E. S. ; CASAS, R. L. ; Chacham, H. . Física no vestibular 2008 - provas do vestibular resolvidas e comentadas. 1. ed. Belo Horizonte: Editora UFMG, 2009. v. 1. 82p .

• R. J. C. Batista ; Chacham, H. . Boron Nitride Fullerenes and Nanocones. In: K. D. Sattler. (Org.). Handbook of Nanophysics. Clusters and Fullerenes. Boca Raton, FL: Taylor and Francis Group, 2011, v. 49, p. 1-11.

• BLASE, X. ; Chacham, H. . Electronic Properties of Boron-Nitride and Boron Carbonitride Nanotubes and Related Heterojunctions. In: Yoke Khin Yap. (Org.). B-C-N Nanotubes and Related Nanostructures (Lecture Notes in Nanoscale Science and Technology - Volume 6). 1ed.New York, NY, USA: Springer, 2009, v. , p. 83-103.

• KOILLER, B. ; CAPAZ, R. B. ; CHACHAM, H. . Atomic Segregation And The Optical Properties Of Gaas/Alas Heterostructures. In: XIV Simposio Latinoamericano de Fisica del Estado Solido, 1998, Oaxaca. Revista Mexicana de Fisica. Oaxaca, Mexico, 1998. v. 44. p. 150-153.

• MAZZONI, M. S. C. ; CARVALHO, A. T. G. ; OLIVEIRA, A. G. ; MOREIRA, M. V. B. ; CHACHAM, H. . Photo-Induced Resistance Resonance Effect In Modulation Doped Gaas/Alas Heterostructures. In: XIV Simposio Latinoamericano de Fisica del Estado Solido, 1998. Revista Mexicana de Fisica. Oaxaca, Mexico. v. 44. p. 173-175.

• RUBINGER, R. M. ; OLIVEIRA, A. G. ; SILVA, M. I. N. ; CORREA, J. A. ; MOREIRA, F. M. V. B. ; RIBEIRO, G. M. ; CHACHAM, H. . Photoconductivity Measurements Of The El2 Metastability In Silicon Planar-Doped Gaas. In: 23rd International Conference on the Physics of Semiconductors, 1996. 23rd International Conference on the Physics of Semiconductors. Berlim, Alemanha. v. 4. p. 2797-2800.

• KOILELR, B. ; MARTINS, A. S. ; CHACHAM, H. . Optical Effects Of Atomic Intermixing In Gaas/Alas Heterostructures. In: 23rd International Conference on the Physics of Semiconductors, 1996. 23rd International Conference on the Physics of Semiconductors. Berlim, Alemanha. v. 3. p. 1839-1842.

• MIWA, R. H. ; FERRAZ, A. C. ; RODRIGUES, W. N. ; CHACHAM, H. . Dimer Exchange In Surfactant-Mediated Epitaxial Groowth Of Gaas/Inas. In: 23rd International Conference on the Physics of Semiconductors, 1996. 23rd International Conference on the Physics of Semicoonductors. Berlim, Alemanha. v. 2. p. 1107-1110.

• CHACHAM, H. ; ALVES, J. L. A. ; SIQUEIRA, M. L. . Electronic Structure Of 3d Transition-Atom Impurities In Zinc Selenide.. In: 15TH INTERNATIONAL CONF. ON DEFECTS IN SEMICONDUCTORS., 1988, Budapeste, Hungria. Materials Science Forum. BUDAPESTE, HUNGRIA, 1988. p. 0-0.

• CHACHAM, H. ; R. J. C. Batista ; MAZZONI, M. S. C. ; E. Artacho ; P. Ordejon ; M. R. Beltran ; I. L. Garzon . Electronic transport through single molecules: effects of strain and contacts. In: 2007 March Meeting of the American Physical Society, 2007, Denver. BAPS.2007.MAR.B44.9, 2007.

• R. Kagimura ; R. W. Nunes ; CHACHAM, H. . Universal behavior of surface-dangling bonds in hydrogen-terminated Si, Ge, and Si/Ge nanowires. In: 2007 March Meeting of the American Physical Society, 2007, Denver. BAPS.2007.MAR.V43.10, 2007.

• CHACHAM, H. . Electronic Transport through Nanoparticles and Organic Molecules. In: 5th International Symposium on Theory of Atomic and Molecular Clusters, 2007, Richmond. 5th International Symposium on Theory of Atomic and Molecular Clusters, 2007.

• CHACHAM, H. . Charge Transport through Organic and Biological Molecules. In: 6th International Conference on Low dimensional Structures and Devices, 2007, San Andres. 6th International Conference on Low dimensional Structures and Devices, 2007.

• CHACHAM, H. ; R. Kagimura ; R. W. Nunes . Structures of Si and Ge nanowires in the subnanometer range. In: 2006 March meeting of the American Physical Society, 2006, Baltimore. BAPS.2006.MAR.D31.6, 2006.

• R. Kagimura ; R. W. Nunes ; CHACHAM, H. . Surface dangling bond states and band lineups in Si and Ge hydrogenated nanowires. In: 28th International Conference on the Physics of Semiconductors, 2006, Viena. Proceedings of the 28th International Conference on the Physics of Semiconductors, 2006.

• CHACHAM, H. . Charge transport through DNA and organic molecules. In: 14th International Conference on Superlattices, Nano-Structures and Nano-Devices, 2006, Istanbul. 14th International Conference on Superlattices, Nano-Structures and Nano-Devices, 2006.

• CHACHAM, H. . Electronic transport through organic molecules: effect of strain and Au molecular contacts. In: XV International Materials Research Congress, 2006, Cancun. XV International Materials Research Congress, 2006.

• MAZZONI, M. S. C. ; CHACHAM, H. ; R. W. Nunes ; Sergio Azevedo . Should boron nitride nanostructures have line defects?. In: 27th International Conference on the Physics of Semiconductors, 2004, Flagstaff. Proceedings of the 27th International Conference on the Physics of Semiconductors, 2004.

• R. Kagimura ; R. W. Nunes ; CHACHAM, H. . Possible structures for Si and Ge nanowires: can they be non-sp3 ?. In: 27th International Conference on the Physics of Semiconductors, 2004, Flagstaff. Proceedings of the 27th International Conference on the Physics of Semiconductors, 2004.

• CHACHAM, H. . Small polarons in dry DNA. In: Spin and Charge Transport in Nanostructures, 2003, Braga. Spin and Charge Transport in Nanostructures, 2003.

• CHACHAM, H. . Polarons in DNA and carbon nanotubes. In: XII International Materials Research Congress, 2003, Cancun. XII International Materials Research Congress, 2003.

• M.VERISSIMO-ALVES, ; CAPAZ, R. B. ; KOILLER, B. ; E. Artacho ; CHACHAM, H. . Polarons in carbon nanotubes. In: 2001 March Meeting of the American Physical Society, 2001, Seattle. Bulletin of the American Physical Society, 2001.

• CHACHAM, H. ; LOUIE, S. G. . Quasiparticle Calculations For The Metallization Of Solid Hydrogen At High Pressures. In: MARCH MEETING OF THE AMERICAN PHYSICAL SOCIETY, 1991, Cincinatti. E.U.A.. Bulletin of the American Physical Society. CINCINATTI, E.U.A., 1991. p. 0-0.

Projetos de pesquisa

• 2009 - Atual

  Vice-coordenador do Instituto Nacional de Ciência e Tecnologia (INCT) de Nanoestruturas de Carbono, Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador.

• 2005 - 2010

  Vice-coordenador do Instituto do Milênio de Nanotecnologia, Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Auxílio financeiro.

• 2005 - 2007

  Cooperação Internacional UFMG-U.N. Autônoma do México, Descrição: Projeto de Cooperação Internacional com os Professores Ignacio L. Garzón e Marcela L. Beltrán da U.N. Autônoma do México, entre 2005 e 2006.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador / I. L. Garzon - Integrante / M. R. Beltran - Integrante., Número de produções C, T & A: 4

• 2005 - Atual

  Vice-coordenador da Rede Nacional de Pesquisa em Nanotubos de Carbono, CNPq, Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Auxílio financeiro.

• 2004 - 2007

  Coordenador do Projeto PRONEX ?Nanotubos de Carbono: Síntese, Caracterização e Simulação?, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Fundação de Amparo à Pesquisa do Estado de Minas Gerais - Auxílio financeiro.

• 2001 - 2006

  Vice-coordenador da Rede Nacional de Pesquisa em Materiais Nano-estruturados (projeto financiado pelo CNPq), Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Auxílio financeiro.

• 2001 - 2006

  Membro do Comitê Científico do Instituto de Nanociências (Instituto do Milênio - MCT), Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Ministério da Ciência, Tecnologia e Inovações - Auxílio financeiro.

• 1998 - Atual

  Cooperação Internacional UFMG-U. Autônoma de Madrid-U. de Cambridge, Descrição: Projetos de Cooperação Internacional com os Professores Emilio Artacho (U. Cambridge) e José M. Soler (U. A. Madrid), envolvendo diversas visitas mútuas desde 1998, e estágios de doutorado sanduíche de 3 doutorandos sob minha orientação, já formados, e resultando em diversos artigos publicados.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (3) . , Integrantes: Helio Chacham - Coordenador / J. M. Soler - Integrante / E. Artacho - Integrante., Número de produções C, T & A: 14

• 1993 - 1996

  Cooperação Internacional UFMG-U.C.Berkeley, Descrição: Projetos de Cooperação Internacional entre UFMG e U.C.Berkeley (com os Profs. Steven Louie e Leo Falicov). , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador / S. G. LOUIE - Integrante / L. M. Falicov - Integrante.

• 1992 - 1997

  Coordenador do sub-projeto FINEP do Grupo de Estrutura Eletrônica no Depto de Física da UFMG, Situação: Concluído; Natureza: Pesquisa. , Integrantes: Helio Chacham - Coordenador., Financiador(es): Financiadora de Estudos e Projetos - Auxílio financeiro.

Prêmios