George Balster Martins

Dr. George Martins Professor Adjunto Instituto de Física - Universidade Federal Fluminense Torre antiga, Andar 1P, Corredor A3, Sala s/n Telefone: (0-XX-21) 2629-5874 / 2629-5875 Fax: (0-XX-21) 2629-5887 gbmartins@id.uff.br

`Atividades de Pesquisa`

Métodos Numéricos aplicados a Sistemas Eletrônicos Fortemente Correlacionados

Minha área de pesquisa principal é a de elétrons fortemente correlacionados. Em colaboração com pesquisadores nos Estados Unidos, Europa, e América Latina, tenho aplicado diferentes técnicas numéricas para estudar as propriedades de sistemas envolvendo elétrons fortemente correlacionados. Algumas das linhas de pesquisa que tenho desenvolvido incluem: Efeito Kondo em nano-estruturas Supercondutividade não-convencional:pnictidas e cupratos Magnetismo Quântico:escadas e cadeias de spin Mais recentemente, comecei a trabalhar em isolantes e supercondutores topológicos. No momento, a análise de correlações nestes sistema é ainda incipente. A terceira publicação da lista abaixo (a ser postada em breve) é a minha primeira contribuição a esta área. ATENÇÃO: Se você é aluno da pós ou graduação na Física da UFF e se interessa por pesquisa teórica em materiais, dê uma olhada nas minhas publicações e entre em contato comigo caso se sinta motivado (e-mail no topo da página). Currículo Lattes - ResearcherID - Google Scholar Acesse meu Currículo Lattes. Visite minha página no Google Scholar para mais informações. Publicações The spatial properties of the one- and two-stage Kondo regimes in semiconductor quantum dot systems L. C. Ribeiro, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B Double quantum dot spin filter in orbital-Kondo regime: slave-boson study R. M. A. Padilla, V. Lopes, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B Kondo effect in a two-dimensional topological insulator: exact numerical results A. Allerdt, A. E. Feiguin, and G. B. Martins A ser submetido ao Phys. Rev. B Multiband superconductivity in BiS₂-based layered compounds M. A. Griffith, T. P. Oliveira, M. A. Continentino, and G. B. Martins Submetido ao Phys. Rev. B Fano-Andreev effect in T-shape double-quantum-dot in the Kondo regime A. M. Calle, M. Pacheco, P. A. Orellana, G. B. Martins, V. M. Apel, and G. A. Lara To appear in J. Phys. Condens. Matter Applying experimental constraints to a one-dimensional model for BiS2 superconductivity M. A. Griffith, K. Foyevtsova, M. A. Continentino, and G. B. Martins Solid State Communications 244, 57 (2016) Kondo versus indirect exchange: Role of lattice and actual range of RKKY interactions in real materials A. Allerdt, C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 91, 085101 (2015) Magnetic-field-modulated Kondo effect in a single-magnetic-ion molecule J. I. Romero, E. Vernek, G. B. Martins, and E. R. Mucciolo Phys. Rev. B 90, 195417 (2014) Spin filtering in a double quantum dot device: Numerical renormalization group study of the internal structure of the Kondo state E. Vernek, C. A. Busser, E. V. Anda, A. E. Feiguin, and G. B. Martins App. Phys. Lett. 104, 132401 (2014) Lanczos transformation for quantum impurity problems in d-dimensional lattices: application to graphene nanoribbons C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 88, 245113 (2013) RPA Analysis of a Two-orbital Model for the BiS2-based Superconductors G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 87, 081102(R) (2013) Supplemental Material Transport properties of a two-impurity system: A theoretical approach. I. J. Hamad, L. Costa Ribeiro, G. B. Martins, and E. V. Anda Phys. Rev. B 87, 115102 (2013) Electrostatic control over polarized currents through the spin-orbital Kondo effect C. A. Busser, A. E. Feiguin, and G. B. Martins Phys. Rev. B 85, 241310(R) (2012) Supplemental Material Kondo temperature and screening extension in a double quantum dot system L. C. Ribeiro, E. Vernek, G. B. Martins, and E. V. Anda Phys. Rev. B 85, 165401 (2012) Capacitively coupled double quantum dot system in the Kondo regime I. L. Ferreira, P. A. Orellana, G. B. Martins, F. M. Souza, and E. Vernek Phys. Rev. B 84, 205320 (2011) Role of degeneracy, hybridization, and nesting in the properties of multiorbital systemss A. Nicholson, Q. L. Luo, W. H. Ge, J. Riera, M. Daghofer, G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 84 094519 (2011) Competing Pairing Symmetries in a Generalized Two-Orbital Model for the Pnictides A. Nicholson, W. Ge, X. Zhang, J. Riera, M. Daghofer, A. M. Oles, G. B. Martins, A. Moreo, and E. Dagotto Physical Review Letters 106 217002 (2011) Transport in Carbon Nanotubes: Two-level SU(2) regime reveals subtle competition between Kondo and Intermediate Valence states C. A. Busser, E. Vernek, P. Orellana, G. A. Lara, E. H. Kim, A. E. Feiguin, E. V. Anda, and G. B. Martins Phys. Rev. B 83, 125404 (2011) Neutron and ARPES constraints on the couplings of the multiorbital Hubbard model for the iron pnictides Q. Luo, G. B. Martins, D.-X. Yao, M. Daghofer, R. Yu, A. Moreo, and E. Dagotto Phys. Rev. B 82, 104508 (2010) Numerical analysis of the spatial range of the Kondo effect C. A. Büsser, G. B. Martins, L. Costa Ribeiro, E. Vernek, E. V. Anda, and E. Dagotto Phys. Rev. B 81, 045111 (2010) Transport and strong-correlation phenomena in carbon nanotube quantum dots in a magnetic field M. Mizuno, E. H. Kim, and G. B. Martins J. Phys.: Condens. Matter 21, 292203 (2010) Kondo regime in triangular arrangements of quantum dots: Molecular orbitals, interference, and contact effects E. Vernek C. A. Büsser, G. B. Martins, E. V. Anda, N. Sandler, and S. E. Ulloa Phys. Rev. B 80, 035119 (2009) Transport through quantum dots: a combined DMRG and embedded-cluster approximation study F. Heidrich-Meisner, G. B. Martins, C. A. Büsser, K. A. Al-Hassanieh, A. E. Feiguin, G. Chiappe, E. V. Anda and E. Dagotto Eur. Phys. Journ. B 67, 527 (2009) Transport properties and Kondo correlations in nanostructures: Time-dependent DMRG method applied to quantum dots coupled to Wilson chains Luis G. G. V. Dias da Silva, F. Heidrich-Meisner, A. E. Feiguin, C. A. Büsser, G. B. Martins, E. V. Anda, and E. Dagotto Phys. Rev. B 78, 195317 (2008) Method to study highly correlated nanostructures: The logarithmic-discretization embedded-cluster approximation E. V. Anda, G. Chiappe, C. A. Büsser, M. A. Davidovich, G. B. Martins, F. Heidrich-Meisner, and E. Dagotto Phys. Rev. B 78, 085308 (2008) Static holes in the geometrically frustrated bow-tie ladder G. B. Martins and W. Brenig J. Phys.: Condens. Matter 20, 415204 (2008) Numerical results indicate a half-filling SU(4) Kondo state in carbon nanotubes C. A. Busser and G. B. Martins Phys. Rev. B 75, 045406 (2007) Transport properties of strongly correlated electrons in quantum dots studied with a simple circuit model G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, E. V. Anda, A. Moreo, and E. Dagotto Physical Review Letters 96 (6) 066802 (2006) Electron transport through a molecular conductor with center-of-mass motion K. A. Al-Hassanieh, C. A. Busser, G. B. Martins, and E. Dagotto Physical Review Letters 95 (25) 256807 (2005) New results for the t-J model in ladders: changes in the spin liquid state with applied magnetic field; implications for the cuprates A. F. Albuquerque and G. B. Martins Journal of Physics: Cond. Matt. 17 (15) 2419 (2005) Prediction of ferromagnetic correlations in coupled double-level quantum dots G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review Letters 94 (2) 026804 (2004) Hole-pair symmetry and excitations in the strong-coupling extended t-Jz model: competition between p-wave and d-wave R. M. Fye, G. B. Martins, and E. Dagotto Physical Review B 69 (22) 224507 (2004) Interference effects in the conductance of multilevel quantum dots C. A. Busser, G. B. Martins, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review B 70 (24) 245303 (2004) Superconductivity in the two-dimensional t-J model S. Sorella, G. B. Martins, F. Becca, C. Gazza, L. Capriotti, A. Parola, and E. Dagotto Physical Review Letters 88 (11) 7002 (2002) Qualitative understanding of the sign of t asymmetry in the extended t-J model and relevance for pairing properties G. B. Martins, J. C. Xavier, L. Arrachea , and E. Dagotto Physical Review B 64 (18) 513 (2001) Indications of spin-charge separation at short distance and stripe formation in the extended t-J model on ladders and planes G. B. Martins, Xavier JC, C. Gazza, Vojta M, E. Dagotto Physical Review B 63 (1) 4414 (2001) Crystal field study in rare-earth-doped LuInNi4 P. G. Pagliuso, J. D. Thompson, J. L. Sarrao, M. S. Sercheli, C. Rettori, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 63 (14) 4430 (2001) Anomalous NMR magnetic shifts in CeCoIn5 N. J. Curro, B. Simovic, P. C. Hammel, P. G. Pagliuso, J. L. Sarrao, J. D. Thompson, and G. B. Martins Physical Review B 64 (18) R514 (2001) Studies of the three-dimensional frustrated antiferromagnetic ZnCr2O4 H. Martinho, N. O. Moreno, J. A. Sanjurjo, C. Rettori, A. J. Garci´a-Adeva, D. L. Huber, S. B. Oseroff, W. Ratcliff, S.-W. Cheong, P. G. Pagliuso, J. L. Sarrao, and G. B. Martins Journal of Applied Physics 89 7050 (2001) Magnetic properties of the frustrated antiferromagnetic spinel ZnCr2O4 and the spin-glass Zn1-xCdxCr2O4 (x=0.05,0.10) H. Martinho, N. O. Moreno, J. A. Sanjurjo, C. Rettori, A. J. Garcia-Adeva, D. L. Huber, S. B. Oseroff, W. Ratcliff, S.-W. Cheong, P. G. Pagliuso, J. L. Sarrao, and G. B. Martins Physical Review B 64 (02) 4408 (2001) Structural effects in the EPR spectra of Ni3+ in La2Ni0.5Li 0.5O4 R. R. Urbano, A. Garcia, E. Granado, J. A. Sanjurjo, I. Torriani, C. Rettori, S. B. Oseroff, A. K. Hassan, G. B. Martins, Z. Fisk, P. G. Pagliuso, J. L. Sarrao, and R. Caciuffo Physical Review B 62 (14) 9593 (2000) Stripes in the Ising limit of models for the cuprates G. B. Martins, C. Gazza, E. Dagotto Physical Review B 62 (21) 13929 (2000) Doped stripes in models for the cuprates emerging from the one-hole properties of the insulator G. B. Martins, C. Gazza, Xavier JC, Feiguin A, E. Dagotto Physical Review Letters 84 (25) 5844 (2000) Doped stripes evolving from the one-hole properties of the antiferromagnetic insulator E. Dagotto and G. B. Martins International Journal of Modern Physics B 14 (29-31) 3424 (2000) Indications of spin-charge separation in the two-dimensional extended t-J model G. B. Martins, Eder R, E. Dagotto Physical Review B 60 (6) R3716 (1999) Hole-density evolution of the one-particle spectral function in doped ladders G. B. Martins, C. Gazza, E. Dagotto Physical Review B 59 (21) 13596 (1999) Hole pairs in a spin liquid: Influence of electrostatic hole-hole repulsion C. Gazza, G. B. Martins, J. A. Riera, and E. Dagotto Physical Review B 59 (2) R709 (1999) Crystal-field study in rare-earth-doped semiconducting YBiPt P. G. Pagliuso, C. Rettori, M. E. Torelli, G. B. Martins, Z. Fisk, J. L. Sarrao, M. F. Hundley, and S. B. Oseroff Physical Review B 60 (6) 4176 (1999) Diagonalization in reduced Hilbert spaces using a systematically improved basis: Application to spin dynamics in lightly doped ladders E. Dagotto, G. B. Martins, J. A. Riera, Malvezzi AL, C. Gazza Physical Review B 58 (18) 12063 (1998) Enhancement of antiferromagnetic correlations induced by nonmagnetic impurities: Origin and predictions for NMR experiments M. Laukamp, G. B. Martins, C. Gazza, A. L. Malvezzi, E. Dagotto, P. M. Hansen, A. C. Lopez, and J. A. Riera Physical Review B 57 (17) 10755 (1998) High-field electron spin resonance of Cu1-x Znx Ge O3 A. K. Hassan, L. A. Pardi, G. B. Martins, G. Cao, and L. C. Brunel Physical Review Letters 80 (09) 1984 (1998) Ferromagnetism and crystal fields in YbInNi4 J. L. Sarrao, R. Modler, R. Movshovich, A. H. Lacerda, D. Hristova, A. L. Cornelius, M. F. Hundley, J. D. Thompson, C. L. Benton, C. D. Immer, M. E. Torelli, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 57 (13) 7785 (1998) Local enhancement of antiferromagnetic correlations by nonmagnetic impurities G. B. Martins, M. Laukamp, J. A. Riera, and E. Dagotto Physical Review Letters 78 (18) 3563 (1997) Rapid suppression of the spin gap in Zn-doped CuGeO3 and SrCu2O3 G. B. Martins, E. Dagotto, and J. A. Riera Physical Review B 54 (22) 16032 (1996) ESR of Gd3+ in magnetically ordered Eu2CuO4 C. Rettori, S. B. Oseroff, D. Rao, J. A. Valdivia, G. E. Barberis, G. B. Martins, J. Sarrao, Z. Fisk, ands M. Tovar Physical Review B 54 1123 (1996) Electron spin resonance of Er3+ in YBiPt G. B. Martins, D. Rao, G. E. Barberis, C. Rettori, R. J. Duro, J. L. Sarrao, Z. Fisk, S. B. Oseroff, and J. D. Thompson Physical Review B 52 15062 (1995) ESR of Gd3+ and Er3+ in Pr2-xCexCuO4 G. B. Martins, D. Rao, J. A. Valdivia, M. A. Pires, G. E. Barberis, C. Rettori, P. A. Venegas, S. B. Oseroff, and Z. Fisk Physical Review B 51 11909 (1995) Different Pr3+ environments in Pr1.85Ce0.15CuO4 – A Raman crystal-field study J. A. Sanjurjo, G. B. Martins, P. G. Pagliuso, E. Granado, I. Torriani, C. Rettori, S. B. Oseroff, and Z. Fisk Physical Review B 51 (02) 1185 (1995) Electron Spin Resonance of Nd3+ and Yb3+ in CeFe4P12 G. B. Martins, M. A. Pires, G. E. Barberis, C. Rettori, and M. S. Torikachvili Physical Review B 50 (20) 14822 (1994) Spin-Lattice interaction for ions in low-symmetry sites – the case of Mn²⁺:CaCO₃ G. E. Barberis, G. B. Martins, and R. Calvo Physical Review B 49 (13) 8583 (1994)

Atividades de Pesquisa

Métodos Numéricos aplicados a Sistemas Eletrônicos Fortemente Correlacionados

Currículo Lattes - ResearcherID - Google Scholar

Publicações

The spatial properties of the one- and two-stage Kondo regimes in semiconductor quantum dot systems L. C. Ribeiro, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B

Double quantum dot spin filter in orbital-Kondo regime: slave-boson study R. M. A. Padilla, V. Lopes, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B

Kondo effect in a two-dimensional topological insulator: exact numerical results A. Allerdt, A. E. Feiguin, and G. B. Martins A ser submetido ao Phys. Rev. B

Multiband superconductivity in BiS2-based layered compounds M. A. Griffith, T. P. Oliveira, M. A. Continentino, and G. B. Martins Submetido ao Phys. Rev. B

Fano-Andreev effect in T-shape double-quantum-dot in the Kondo regime A. M. Calle, M. Pacheco, P. A. Orellana, G. B. Martins, V. M. Apel, and G. A. Lara To appear in J. Phys. Condens. Matter

Applying experimental constraints to a one-dimensional model for BiS2 superconductivity M. A. Griffith, K. Foyevtsova, M. A. Continentino, and G. B. Martins Solid State Communications 244, 57 (2016)

Kondo versus indirect exchange: Role of lattice and actual range of RKKY interactions in real materials A. Allerdt, C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 91, 085101 (2015)

Magnetic-field-modulated Kondo effect in a single-magnetic-ion molecule J. I. Romero, E. Vernek, G. B. Martins, and E. R. Mucciolo Phys. Rev. B 90, 195417 (2014)

Spin filtering in a double quantum dot device: Numerical renormalization group study of the internal structure of the Kondo state E. Vernek, C. A. Busser, E. V. Anda, A. E. Feiguin, and G. B. Martins App. Phys. Lett. 104, 132401 (2014)

Lanczos transformation for quantum impurity problems in d-dimensional lattices: application to graphene nanoribbons C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 88, 245113 (2013)

RPA Analysis of a Two-orbital Model for the BiS2-based Superconductors G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 87, 081102(R) (2013) Supplemental Material

Transport properties of a two-impurity system: A theoretical approach. I. J. Hamad, L. Costa Ribeiro, G. B. Martins, and E. V. Anda Phys. Rev. B 87, 115102 (2013)

Electrostatic control over polarized currents through the spin-orbital Kondo effect C. A. Busser, A. E. Feiguin, and G. B. Martins Phys. Rev. B 85, 241310(R) (2012) Supplemental Material

Kondo temperature and screening extension in a double quantum dot system L. C. Ribeiro, E. Vernek, G. B. Martins, and E. V. Anda Phys. Rev. B 85, 165401 (2012)

Capacitively coupled double quantum dot system in the Kondo regime I. L. Ferreira, P. A. Orellana, G. B. Martins, F. M. Souza, and E. Vernek Phys. Rev. B 84, 205320 (2011)

Role of degeneracy, hybridization, and nesting in the properties of multiorbital systemss A. Nicholson, Q. L. Luo, W. H. Ge, J. Riera, M. Daghofer, G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 84 094519 (2011)

Competing Pairing Symmetries in a Generalized Two-Orbital Model for the Pnictides A. Nicholson, W. Ge, X. Zhang, J. Riera, M. Daghofer, A. M. Oles, G. B. Martins, A. Moreo, and E. Dagotto Physical Review Letters 106 217002 (2011)

Transport in Carbon Nanotubes: Two-level SU(2) regime reveals subtle competition between Kondo and Intermediate Valence states C. A. Busser, E. Vernek, P. Orellana, G. A. Lara, E. H. Kim, A. E. Feiguin, E. V. Anda, and G. B. Martins Phys. Rev. B 83, 125404 (2011)

Neutron and ARPES constraints on the couplings of the multiorbital Hubbard model for the iron pnictides Q. Luo, G. B. Martins, D.-X. Yao, M. Daghofer, R. Yu, A. Moreo, and E. Dagotto Phys. Rev. B 82, 104508 (2010)

Numerical analysis of the spatial range of the Kondo effect C. A. Büsser, G. B. Martins, L. Costa Ribeiro, E. Vernek, E. V. Anda, and E. Dagotto Phys. Rev. B 81, 045111 (2010)

Transport and strong-correlation phenomena in carbon nanotube quantum dots in a magnetic field M. Mizuno, E. H. Kim, and G. B. Martins J. Phys.: Condens. Matter 21, 292203 (2010)

Kondo regime in triangular arrangements of quantum dots: Molecular orbitals, interference, and contact effects E. Vernek C. A. Büsser, G. B. Martins, E. V. Anda, N. Sandler, and S. E. Ulloa Phys. Rev. B 80, 035119 (2009)

Transport through quantum dots: a combined DMRG and embedded-cluster approximation study F. Heidrich-Meisner, G. B. Martins, C. A. Büsser, K. A. Al-Hassanieh, A. E. Feiguin, G. Chiappe, E. V. Anda and E. Dagotto Eur. Phys. Journ. B 67, 527 (2009)

Transport properties and Kondo correlations in nanostructures: Time-dependent DMRG method applied to quantum dots coupled to Wilson chains Luis G. G. V. Dias da Silva, F. Heidrich-Meisner, A. E. Feiguin, C. A. Büsser, G. B. Martins, E. V. Anda, and E. Dagotto Phys. Rev. B 78, 195317 (2008)

Method to study highly correlated nanostructures: The logarithmic-discretization embedded-cluster approximation E. V. Anda, G. Chiappe, C. A. Büsser, M. A. Davidovich, G. B. Martins, F. Heidrich-Meisner, and E. Dagotto Phys. Rev. B 78, 085308 (2008)

Static holes in the geometrically frustrated bow-tie ladder G. B. Martins and W. Brenig J. Phys.: Condens. Matter 20, 415204 (2008)

Numerical results indicate a half-filling SU(4) Kondo state in carbon nanotubes C. A. Busser and G. B. Martins Phys. Rev. B 75, 045406 (2007)

Transport properties of strongly correlated electrons in quantum dots studied with a simple circuit model G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, E. V. Anda, A. Moreo, and E. Dagotto Physical Review Letters 96 (6) 066802 (2006)

Electron transport through a molecular conductor with center-of-mass motion K. A. Al-Hassanieh, C. A. Busser, G. B. Martins, and E. Dagotto Physical Review Letters 95 (25) 256807 (2005)

New results for the t-J model in ladders: changes in the spin liquid state with applied magnetic field; implications for the cuprates A. F. Albuquerque and G. B. Martins Journal of Physics: Cond. Matt. 17 (15) 2419 (2005)

Prediction of ferromagnetic correlations in coupled double-level quantum dots G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review Letters 94 (2) 026804 (2004)

Hole-pair symmetry and excitations in the strong-coupling extended t-Jz model: competition between p-wave and d-wave R. M. Fye, G. B. Martins, and E. Dagotto Physical Review B 69 (22) 224507 (2004)

Interference effects in the conductance of multilevel quantum dots C. A. Busser, G. B. Martins, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review B 70 (24) 245303 (2004)

Superconductivity in the two-dimensional t-J model S. Sorella, G. B. Martins, F. Becca, C. Gazza, L. Capriotti, A. Parola, and E. Dagotto Physical Review Letters 88 (11) 7002 (2002)

Qualitative understanding of the sign of t asymmetry in the extended t-J model and relevance for pairing properties G. B. Martins, J. C. Xavier, L. Arrachea , and E. Dagotto Physical Review B 64 (18) 513 (2001)

Indications of spin-charge separation at short distance and stripe formation in the extended t-J model on ladders and planes G. B. Martins, Xavier JC, C. Gazza, Vojta M, E. Dagotto Physical Review B 63 (1) 4414 (2001)

Crystal field study in rare-earth-doped LuInNi4 P. G. Pagliuso, J. D. Thompson, J. L. Sarrao, M. S. Sercheli, C. Rettori, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 63 (14) 4430 (2001)

Anomalous NMR magnetic shifts in CeCoIn5 N. J. Curro, B. Simovic, P. C. Hammel, P. G. Pagliuso, J. L. Sarrao, J. D. Thompson, and G. B. Martins Physical Review B 64 (18) R514 (2001)

Studies of the three-dimensional frustrated antiferromagnetic ZnCr2O4 H. Martinho, N. O. Moreno, J. A. Sanjurjo, C. Rettori, A. J. Garci´a-Adeva, D. L. Huber, S. B. Oseroff, W. Ratcliff, S.-W. Cheong, P. G. Pagliuso, J. L. Sarrao, and G. B. Martins Journal of Applied Physics 89 7050 (2001)

Structural effects in the EPR spectra of Ni3+ in La2Ni0.5Li 0.5O4 R. R. Urbano, A. Garcia, E. Granado, J. A. Sanjurjo, I. Torriani, C. Rettori, S. B. Oseroff, A. K. Hassan, G. B. Martins, Z. Fisk, P. G. Pagliuso, J. L. Sarrao, and R. Caciuffo Physical Review B 62 (14) 9593 (2000)

Stripes in the Ising limit of models for the cuprates G. B. Martins, C. Gazza, E. Dagotto Physical Review B 62 (21) 13929 (2000)

Doped stripes in models for the cuprates emerging from the one-hole properties of the insulator G. B. Martins, C. Gazza, Xavier JC, Feiguin A, E. Dagotto Physical Review Letters 84 (25) 5844 (2000)

Doped stripes evolving from the one-hole properties of the antiferromagnetic insulator E. Dagotto and G. B. Martins International Journal of Modern Physics B 14 (29-31) 3424 (2000)

Indications of spin-charge separation in the two-dimensional extended t-J model G. B. Martins, Eder R, E. Dagotto Physical Review B 60 (6) R3716 (1999)

Hole-density evolution of the one-particle spectral function in doped ladders G. B. Martins, C. Gazza, E. Dagotto Physical Review B 59 (21) 13596 (1999)

Hole pairs in a spin liquid: Influence of electrostatic hole-hole repulsion C. Gazza, G. B. Martins, J. A. Riera, and E. Dagotto Physical Review B 59 (2) R709 (1999)

Crystal-field study in rare-earth-doped semiconducting YBiPt P. G. Pagliuso, C. Rettori, M. E. Torelli, G. B. Martins, Z. Fisk, J. L. Sarrao, M. F. Hundley, and S. B. Oseroff Physical Review B 60 (6) 4176 (1999)

Diagonalization in reduced Hilbert spaces using a systematically improved basis: Application to spin dynamics in lightly doped ladders E. Dagotto, G. B. Martins, J. A. Riera, Malvezzi AL, C. Gazza Physical Review B 58 (18) 12063 (1998)

Enhancement of antiferromagnetic correlations induced by nonmagnetic impurities: Origin and predictions for NMR experiments M. Laukamp, G. B. Martins, C. Gazza, A. L. Malvezzi, E. Dagotto, P. M. Hansen, A. C. Lopez, and J. A. Riera Physical Review B 57 (17) 10755 (1998)

High-field electron spin resonance of Cu1-x Znx Ge O3 A. K. Hassan, L. A. Pardi, G. B. Martins, G. Cao, and L. C. Brunel Physical Review Letters 80 (09) 1984 (1998)

Ferromagnetism and crystal fields in YbInNi4 J. L. Sarrao, R. Modler, R. Movshovich, A. H. Lacerda, D. Hristova, A. L. Cornelius, M. F. Hundley, J. D. Thompson, C. L. Benton, C. D. Immer, M. E. Torelli, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 57 (13) 7785 (1998)

Local enhancement of antiferromagnetic correlations by nonmagnetic impurities G. B. Martins, M. Laukamp, J. A. Riera, and E. Dagotto Physical Review Letters 78 (18) 3563 (1997)

Rapid suppression of the spin gap in Zn-doped CuGeO3 and SrCu2O3 G. B. Martins, E. Dagotto, and J. A. Riera Physical Review B 54 (22) 16032 (1996)

ESR of Gd3+ in magnetically ordered Eu2CuO4 C. Rettori, S. B. Oseroff, D. Rao, J. A. Valdivia, G. E. Barberis, G. B. Martins, J. Sarrao, Z. Fisk, ands M. Tovar Physical Review B 54 1123 (1996)

Electron spin resonance of Er3+ in YBiPt G. B. Martins, D. Rao, G. E. Barberis, C. Rettori, R. J. Duro, J. L. Sarrao, Z. Fisk, S. B. Oseroff, and J. D. Thompson Physical Review B 52 15062 (1995)

ESR of Gd3+ and Er3+ in Pr2-xCexCuO4 G. B. Martins, D. Rao, J. A. Valdivia, M. A. Pires, G. E. Barberis, C. Rettori, P. A. Venegas, S. B. Oseroff, and Z. Fisk Physical Review B 51 11909 (1995)

Different Pr3+ environments in Pr1.85Ce0.15CuO4 – A Raman crystal-field study J. A. Sanjurjo, G. B. Martins, P. G. Pagliuso, E. Granado, I. Torriani, C. Rettori, S. B. Oseroff, and Z. Fisk Physical Review B 51 (02) 1185 (1995)

Electron Spin Resonance of Nd3+ and Yb3+ in CeFe4P12 G. B. Martins, M. A. Pires, G. E. Barberis, C. Rettori, and M. S. Torikachvili Physical Review B 50 (20) 14822 (1994)

Spin-Lattice interaction for ions in low-symmetry sites – the case of Mn2+:CaCO3 G. E. Barberis, G. B. Martins, and R. Calvo Physical Review B 49 (13) 8583 (1994)

`Atividades de Pesquisa`

`Métodos Numéricos aplicados a Sistemas Eletrônicos Fortemente Correlacionados`

`Currículo Lattes - ResearcherID - Google Scholar`

`Publicações`

`The spatial properties of the one- and two-stage Kondo regimes in semiconductor quantum dot systems L. C. Ribeiro, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B`

`Double quantum dot spin filter in orbital-Kondo regime: slave-boson study R. M. A. Padilla, V. Lopes, G. B. Martins, and E. V. Anda A ser submetido ao Phys. Rev. B`

`Kondo effect in a two-dimensional topological insulator: exact numerical results A. Allerdt, A. E. Feiguin, and G. B. Martins A ser submetido ao Phys. Rev. B`

`Multiband superconductivity in BiS₂-based layered compounds M. A. Griffith, T. P. Oliveira, M. A. Continentino, and G. B. Martins Submetido ao Phys. Rev. B`

`Fano-Andreev effect in T-shape double-quantum-dot in the Kondo regime A. M. Calle, M. Pacheco, P. A. Orellana, G. B. Martins, V. M. Apel, and G. A. Lara To appear in J. Phys. Condens. Matter`

`Applying experimental constraints to a one-dimensional model for BiS2 superconductivity M. A. Griffith, K. Foyevtsova, M. A. Continentino, and G. B. Martins Solid State Communications 244, 57 (2016)`

`Kondo versus indirect exchange: Role of lattice and actual range of RKKY interactions in real materials A. Allerdt, C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 91, 085101 (2015)`

`Magnetic-field-modulated Kondo effect in a single-magnetic-ion molecule J. I. Romero, E. Vernek, G. B. Martins, and E. R. Mucciolo Phys. Rev. B 90, 195417 (2014)`

`Spin filtering in a double quantum dot device: Numerical renormalization group study of the internal structure of the Kondo state E. Vernek, C. A. Busser, E. V. Anda, A. E. Feiguin, and G. B. Martins App. Phys. Lett. 104, 132401 (2014)`

`Lanczos transformation for quantum impurity problems in d-dimensional lattices: application to graphene nanoribbons C. A. Busser, G. B. Martins, and A. E. Feiguin Phys. Rev. B 88, 245113 (2013)`

`RPA Analysis of a Two-orbital Model for the BiS2-based Superconductors G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 87, 081102(R) (2013) Supplemental Material`

`Transport properties of a two-impurity system: A theoretical approach. I. J. Hamad, L. Costa Ribeiro, G. B. Martins, and E. V. Anda Phys. Rev. B 87, 115102 (2013)`

`Electrostatic control over polarized currents through the spin-orbital Kondo effect C. A. Busser, A. E. Feiguin, and G. B. Martins Phys. Rev. B 85, 241310(R) (2012) Supplemental Material`

`Kondo temperature and screening extension in a double quantum dot system L. C. Ribeiro, E. Vernek, G. B. Martins, and E. V. Anda Phys. Rev. B 85, 165401 (2012)`

`Capacitively coupled double quantum dot system in the Kondo regime I. L. Ferreira, P. A. Orellana, G. B. Martins, F. M. Souza, and E. Vernek Phys. Rev. B 84, 205320 (2011)`

`Role of degeneracy, hybridization, and nesting in the properties of multiorbital systemss A. Nicholson, Q. L. Luo, W. H. Ge, J. Riera, M. Daghofer, G. B. Martins, A. Moreo, and E. Dagotto Phys. Rev. B 84 094519 (2011)`

`Competing Pairing Symmetries in a Generalized Two-Orbital Model for the Pnictides A. Nicholson, W. Ge, X. Zhang, J. Riera, M. Daghofer, A. M. Oles, G. B. Martins, A. Moreo, and E. Dagotto Physical Review Letters 106 217002 (2011)`

`Transport in Carbon Nanotubes: Two-level SU(2) regime reveals subtle competition between Kondo and Intermediate Valence states C. A. Busser, E. Vernek, P. Orellana, G. A. Lara, E. H. Kim, A. E. Feiguin, E. V. Anda, and G. B. Martins Phys. Rev. B 83, 125404 (2011)`

`Neutron and ARPES constraints on the couplings of the multiorbital Hubbard model for the iron pnictides Q. Luo, G. B. Martins, D.-X. Yao, M. Daghofer, R. Yu, A. Moreo, and E. Dagotto Phys. Rev. B 82, 104508 (2010)`

`Numerical analysis of the spatial range of the Kondo effect C. A. Büsser, G. B. Martins, L. Costa Ribeiro, E. Vernek, E. V. Anda, and E. Dagotto Phys. Rev. B 81, 045111 (2010)`

`Transport and strong-correlation phenomena in carbon nanotube quantum dots in a magnetic field M. Mizuno, E. H. Kim, and G. B. Martins J. Phys.: Condens. Matter 21, 292203 (2010)`

`Kondo regime in triangular arrangements of quantum dots: Molecular orbitals, interference, and contact effects E. Vernek C. A. Büsser, G. B. Martins, E. V. Anda, N. Sandler, and S. E. Ulloa Phys. Rev. B 80, 035119 (2009)`

`Transport through quantum dots: a combined DMRG and embedded-cluster approximation study F. Heidrich-Meisner, G. B. Martins, C. A. Büsser, K. A. Al-Hassanieh, A. E. Feiguin, G. Chiappe, E. V. Anda and E. Dagotto Eur. Phys. Journ. B 67, 527 (2009)`

`Transport properties and Kondo correlations in nanostructures: Time-dependent DMRG method applied to quantum dots coupled to Wilson chains Luis G. G. V. Dias da Silva, F. Heidrich-Meisner, A. E. Feiguin, C. A. Büsser, G. B. Martins, E. V. Anda, and E. Dagotto Phys. Rev. B 78, 195317 (2008)`

`Method to study highly correlated nanostructures: The logarithmic-discretization embedded-cluster approximation E. V. Anda, G. Chiappe, C. A. Büsser, M. A. Davidovich, G. B. Martins, F. Heidrich-Meisner, and E. Dagotto Phys. Rev. B 78, 085308 (2008)`

`Static holes in the geometrically frustrated bow-tie ladder G. B. Martins and W. Brenig J. Phys.: Condens. Matter 20, 415204 (2008)`

`Numerical results indicate a half-filling SU(4) Kondo state in carbon nanotubes C. A. Busser and G. B. Martins Phys. Rev. B 75, 045406 (2007)`

`Transport properties of strongly correlated electrons in quantum dots studied with a simple circuit model G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, E. V. Anda, A. Moreo, and E. Dagotto Physical Review Letters 96 (6) 066802 (2006)`

`Electron transport through a molecular conductor with center-of-mass motion K. A. Al-Hassanieh, C. A. Busser, G. B. Martins, and E. Dagotto Physical Review Letters 95 (25) 256807 (2005)`

`New results for the t-J model in ladders: changes in the spin liquid state with applied magnetic field; implications for the cuprates A. F. Albuquerque and G. B. Martins Journal of Physics: Cond. Matt. 17 (15) 2419 (2005)`

`Prediction of ferromagnetic correlations in coupled double-level quantum dots G. B. Martins, C. A. Busser, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review Letters 94 (2) 026804 (2004)`

`Hole-pair symmetry and excitations in the strong-coupling extended t-Jz model: competition between p-wave and d-wave R. M. Fye, G. B. Martins, and E. Dagotto Physical Review B 69 (22) 224507 (2004)`

`Interference effects in the conductance of multilevel quantum dots C. A. Busser, G. B. Martins, K. A. Al-Hassanieh, A. Moreo, and E. Dagotto Physical Review B 70 (24) 245303 (2004)`

`Superconductivity in the two-dimensional t-J model S. Sorella, G. B. Martins, F. Becca, C. Gazza, L. Capriotti, A. Parola, and E. Dagotto Physical Review Letters 88 (11) 7002 (2002)`

`Qualitative understanding of the sign of t asymmetry in the extended t-J model and relevance for pairing properties G. B. Martins, J. C. Xavier, L. Arrachea , and E. Dagotto Physical Review B 64 (18) 513 (2001)`

`Indications of spin-charge separation at short distance and stripe formation in the extended t-J model on ladders and planes G. B. Martins, Xavier JC, C. Gazza, Vojta M, E. Dagotto Physical Review B 63 (1) 4414 (2001)`

`Crystal field study in rare-earth-doped LuInNi4 P. G. Pagliuso, J. D. Thompson, J. L. Sarrao, M. S. Sercheli, C. Rettori, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 63 (14) 4430 (2001)`

`Anomalous NMR magnetic shifts in CeCoIn5 N. J. Curro, B. Simovic, P. C. Hammel, P. G. Pagliuso, J. L. Sarrao, J. D. Thompson, and G. B. Martins Physical Review B 64 (18) R514 (2001)`

`Studies of the three-dimensional frustrated antiferromagnetic ZnCr2O4 H. Martinho, N. O. Moreno, J. A. Sanjurjo, C. Rettori, A. J. Garci´a-Adeva, D. L. Huber, S. B. Oseroff, W. Ratcliff, S.-W. Cheong, P. G. Pagliuso, J. L. Sarrao, and G. B. Martins Journal of Applied Physics 89 7050 (2001)`

`Structural effects in the EPR spectra of Ni3+ in La2Ni0.5Li 0.5O4 R. R. Urbano, A. Garcia, E. Granado, J. A. Sanjurjo, I. Torriani, C. Rettori, S. B. Oseroff, A. K. Hassan, G. B. Martins, Z. Fisk, P. G. Pagliuso, J. L. Sarrao, and R. Caciuffo Physical Review B 62 (14) 9593 (2000)`

`Stripes in the Ising limit of models for the cuprates G. B. Martins, C. Gazza, E. Dagotto Physical Review B 62 (21) 13929 (2000)`

`Doped stripes in models for the cuprates emerging from the one-hole properties of the insulator G. B. Martins, C. Gazza, Xavier JC, Feiguin A, E. Dagotto Physical Review Letters 84 (25) 5844 (2000)`

`Doped stripes evolving from the one-hole properties of the antiferromagnetic insulator E. Dagotto and G. B. Martins International Journal of Modern Physics B 14 (29-31) 3424 (2000)`

`Indications of spin-charge separation in the two-dimensional extended t-J model G. B. Martins, Eder R, E. Dagotto Physical Review B 60 (6) R3716 (1999)`

`Hole-density evolution of the one-particle spectral function in doped ladders G. B. Martins, C. Gazza, E. Dagotto Physical Review B 59 (21) 13596 (1999)`

`Hole pairs in a spin liquid: Influence of electrostatic hole-hole repulsion C. Gazza, G. B. Martins, J. A. Riera, and E. Dagotto Physical Review B 59 (2) R709 (1999)`

`Crystal-field study in rare-earth-doped semiconducting YBiPt P. G. Pagliuso, C. Rettori, M. E. Torelli, G. B. Martins, Z. Fisk, J. L. Sarrao, M. F. Hundley, and S. B. Oseroff Physical Review B 60 (6) 4176 (1999)`

`Diagonalization in reduced Hilbert spaces using a systematically improved basis: Application to spin dynamics in lightly doped ladders E. Dagotto, G. B. Martins, J. A. Riera, Malvezzi AL, C. Gazza Physical Review B 58 (18) 12063 (1998)`

`Enhancement of antiferromagnetic correlations induced by nonmagnetic impurities: Origin and predictions for NMR experiments M. Laukamp, G. B. Martins, C. Gazza, A. L. Malvezzi, E. Dagotto, P. M. Hansen, A. C. Lopez, and J. A. Riera Physical Review B 57 (17) 10755 (1998)`

`High-field electron spin resonance of Cu1-x Znx Ge O3 A. K. Hassan, L. A. Pardi, G. B. Martins, G. Cao, and L. C. Brunel Physical Review Letters 80 (09) 1984 (1998)`

`Ferromagnetism and crystal fields in YbInNi4 J. L. Sarrao, R. Modler, R. Movshovich, A. H. Lacerda, D. Hristova, A. L. Cornelius, M. F. Hundley, J. D. Thompson, C. L. Benton, C. D. Immer, M. E. Torelli, G. B. Martins, Z. Fisk, and S. B. Oseroff Physical Review B 57 (13) 7785 (1998)`

`Local enhancement of antiferromagnetic correlations by nonmagnetic impurities G. B. Martins, M. Laukamp, J. A. Riera, and E. Dagotto Physical Review Letters 78 (18) 3563 (1997)`

`Rapid suppression of the spin gap in Zn-doped CuGeO3 and SrCu2O3 G. B. Martins, E. Dagotto, and J. A. Riera Physical Review B 54 (22) 16032 (1996)`

`ESR of Gd3+ in magnetically ordered Eu2CuO4 C. Rettori, S. B. Oseroff, D. Rao, J. A. Valdivia, G. E. Barberis, G. B. Martins, J. Sarrao, Z. Fisk, ands M. Tovar Physical Review B 54 1123 (1996)`

`Electron spin resonance of Er3+ in YBiPt G. B. Martins, D. Rao, G. E. Barberis, C. Rettori, R. J. Duro, J. L. Sarrao, Z. Fisk, S. B. Oseroff, and J. D. Thompson Physical Review B 52 15062 (1995)`

`ESR of Gd3+ and Er3+ in Pr2-xCexCuO4 G. B. Martins, D. Rao, J. A. Valdivia, M. A. Pires, G. E. Barberis, C. Rettori, P. A. Venegas, S. B. Oseroff, and Z. Fisk Physical Review B 51 11909 (1995)`

`Different Pr3+ environments in Pr1.85Ce0.15CuO4 – A Raman crystal-field study J. A. Sanjurjo, G. B. Martins, P. G. Pagliuso, E. Granado, I. Torriani, C. Rettori, S. B. Oseroff, and Z. Fisk Physical Review B 51 (02) 1185 (1995)`

`Electron Spin Resonance of Nd3+ and Yb3+ in CeFe4P12 G. B. Martins, M. A. Pires, G. E. Barberis, C. Rettori, and M. S. Torikachvili Physical Review B 50 (20) 14822 (1994)`

`Spin-Lattice interaction for ions in low-symmetry sites – the case of Mn²⁺:CaCO₃ G. E. Barberis, G. B. Martins, and R. Calvo Physical Review B 49 (13) 8583 (1994)`