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Publicaciones

2014

2014

  • The role of atomic vacancies and boundary conditions on ballistic thermal transport in graphene nanoribbons.
    P. Scuracchio, S. Costamagna, F. M. Peeters, A. Dobry
    Phys. Rev. B 90, 035429 (2014)
  • Magnetic and transport signatures of Rashba spin-orbit coupling on the ferromagnetic Kondo lattice model in two dimensions
    Giovany A. Meza and José A. Riera
    Phys. Rev. B 90, 085107, (2014)
  • Classical Antiferromagnetism in Kinetically Frustrated Electronic Models
    C. N. Sposetti, B. Bravo, A. E. Trumper, C. J. Gazza, and L. O. Manuel
    Phys. Rev. Lett. 112, 187204, (2014)
2013

2013

  • Bending mode fluctuations and structural stability of graphene nanoribbons. 
    P. Scuracchio, A. Dobry
    Phys. Rev. B 87, 165411 (2013)
  • Spin polarization in the Hubbard model with Rashba spin-orbit coupling on a ladder
    José A. Riera
    Phys. Rev. B 88, 045102, (2013)
  • Magnetic states of the two-leg-ladder alkali metal iron selenides AFe2Se3
    Qinlong Luo, Andrew Nicholson, Julián Rincón, Shuhua Liang, José Riera, Gonzalo Alvarez,
    Limin Wang, Wei Ku, German D. Samolyuk, Adriana Moreo, and Elbio Dagotto
    Phys. Rev. B 87, 024404, (2013)
  • Generation of chiral solitons in antiferromagnetic chains by a quantum quench
    Barbara Bravo, Ariel Dobry, Diego Mastrogiuseppe, and Claudio Gazza
    Phys. Rev. B 88, 195125, (2013)
2012

2012

  • Pairing symmetries of a hole-doped extended two-orbital model for the pnictides
    Andrew Nicholson, Weihao Ge, José Riera, Maria Daghofer, Adriana Moreo, and Elbio Dagotto
    Phys. Rev. B 85, 024532, (2012)
  • Effects of semiclassical spiral fluctuations on hole dynamics
    I. J. Hamad, L. O. Manuel, and A. E. Trumper
    Phys. Rev. B 85, 024402, (2012)

    Off-center impurities in a robust ferroelectric material: Case of Li in KNbO3
    R. Machado, M. Sepliarsky, and M. G. Stachiotti
    Phys. Rev. B 86, 094118, (2012)
2011

2011

  • From graphene sheets to graphene nanoribbons: Dimensional crossover signals in structural thermal fluctuations
    S. Costamagna and A. Dobry
    Phys. Rev. B 83, 233401 (2011)
  • Anharmonic effects in magnetoelastic chains
    D. C. Cabra, C. J. Gazza, C. A. Lamas, and H. D. Rosales
    Phys. Rev. B 83, 224406 (2011)

    Relative phase stability and lattice dynamics of NaNbO3 from first-principles calculations
    R. Machado, M. Sepliarsky, and M. G. Stachiotti
    Phys. Rev. B 84, 134107, (2011)
  • Short-ranged and short-lived charge-density-wave order and pseudogap features in underdoped cuprate superconductors
    Andrés Greco and Matías Bejas
    Phys. Rev. B 83, 212503 (2011)
  • Magnetic state of K0.8Fe1.6Se2 from a five-orbital Hubbard model in the Hartree-Fock approximation
    Qinlong Luo, Andrew Nicholson, José Riera, Dao-Xin Yao, Adriana Moreo, and Elbio Dagotto
    Phys. Rev. B 84, 140506(R), (2011)
  • Role of degeneracy, hybridization, and nesting in the properties of multiorbital systems
    Andrew Nicholson, Qinlong Luo, Weihao Ge, José Riera, Maria Daghofer, George B. Martins, Adriana Moreo, and Elbio Dagotto
    Phys. Rev. B 84, 094519, (2011)
  • Competing Pairing Symmetries in a Generalized Two-Orbital Model for the Pnictide Superconductors
    Andrew Nicholson, Weihao Ge, Xiaotian Zhang, José Riera, Maria Daghofer, Andrzej M. Oleś, George B. Martins, Adriana Moreo, and Elbio Dagotto
    Phys. Rev. Lett. 106, 217002 (2011)
  • Incommensurate spin Luttinger liquid phase in a model for the spin-Peierls materials TiOBr and TiOCl
    D. Mastrogiuseppe, C. Gazza, and A. Dobry
    Phys. Rev. B 83, 134428 (2011)
  • Toroidal Ferroelectricity in PbTiO3 Nanoparticles
    M. G. Stachiotti and M. Sepliarsky
    Phys. Rev. Lett. 106, 137601 (2011)
  • Effects of vertex corrections on diagrammatic approximations applied to the study of transport through a quantum dot
    Leandro Tosi, Pablo Roura-Bas, Ana María Llois, and Luis O. Manuel
    Physical Review B 83, 73301 (2011)
  • Doping and temperature dependence of the pseudogap and Fermi arcs in cuprates from d-CDW with short-range fluctuations in the context of the t-J model
    Matías Bejas, Guillermo Buzon, Andrés Greco, and Adriana Foussats
    Phys. Rev. B 83, 014514 (2011)
  • A test of the bosonic spinon theory for the triangular antiferromagnet spectrum
    A. Mezio, C. N. Sposetti, L. O. Manuel, and A. E. Trumper
    Europhysics Letters 94, 47001 (2011)
2010

2010

  • Bandwidth Tuning Triggers Interplay of Charge Order and Superconductivity in Two-Dimensional Organic Materials
    S. Kaiser, M. Dressel, Y. Sun, A. Greco, J. A. Schlueter, G. L. Gard, and N. Drichko
    Phys. Rev. Lett. 105, 206402 (2010)
  • Two distinct quasiparticle inelastic scattering rates in the t-J model and their relevance for high-Tc cuprate superconductors
    Guillermo Buzon and Andrés Greco
    Phys. Rev. B 82, 054526 (2010)
  • Spectral gap induced by structural corrugation in armchair graphene nanoribbons
    S. Costamagna, O. Hernandez, and A. Dobry
    Phys. Rev. B 81, 115421 (2010)
2009

2009

  • Evidence for Two Competing Order Parameters in Underdoped Cuprate Superconductors from a Model Analysis of Fermi-Arc Effects
    Andrés Greco, Phys. Rev. Lett. 103, 217001 (2009)
  • Microscopic theory for the incommensurate transition in TiOCl
    Diego Mastrogiuseppe and Ariel Dobry
    Phys. Rev. B 79, 134430 (2009)
  • Properties of a two-orbital model for oxypnictide superconductors: Magnetic order, B2g spin-singlet pairing channel, and its nodal structure
    A. Moreo, M. Daghofer, J. A. Riera, and E. Dagotto
    Phys. Rev. B 79, 104510 (2009)
  • First-principles study of the adsorption of NH3 on Ag surfaces
    M. G. Stachiotti
    Phys. Rev. B 79, 115405 (2009)
2008

2008

  • Role of dynamical non-double-occupancy excitations on the quasiparticle damping of the t−J model in the large-N limit
    A. Foussats, A. Greco, and M. Bejas
    Phys. Rev. B 78, 153110 (2008)
  • Large magnetoresistance in a manganite spin tunnel junction using LaMnO3 as the insulating barrier
    S. Yunoki, E. Dagotto, S. Costamagna, and J. A. Riera
    Phys. Rev. B 78, 024405 (2008)
  • Numerical study of finite size effects in the one-dimensional two-impurity Anderson model
    S. Costamagna and J. A. Riera
    Phys. Rev. B 77, 235103 (2008)
  • Self-energy renormalization around the flux phase in the t-J model: Possible implications in underdoped cuprates
    Andrés Greco
    Phys. Rev. B 77, 092503 (2008)
  • One-particle spectral properties of the t-J-V model on the triangular lattice near charge order
    M. Bejas, A. Greco, A. Muramatsu, and A. Foussats
    Phys. Rev. B 77, 075131 (2008)
  • Spin polaron in the J1-J2 Heisenberg model
    I. J. Hamad, A. E. Trumper, A. E. Feiguin, and L. O. Manuel
    Phys. Rev. B 77, 014410 (2008)
  • Magnetic and transport properties of the one-dimensional ferromagnetic Kondo lattice model with an impurity
    S. Costamagna and J. A. Riera
    Phys. Rev. B 77, 045302 (2008)
2007

2007

  • Incommmensurability and Unconventional Superconductor to Insulator Transition in the Hubbard Model with Bond-Charge Interaction
    A. A. Aligia, A. Anfossi, L. Arrachea, C. Degli Esposti Boschi, A. O. Dobry, C. Gazza, A. Montorsi,
    F. Ortolani and M. E. Torio
    Phys. Rev. Lett. 99 206401 (2007)
  • Magnetic and transport properties of a one-dimensional frustrated t-J model for vanadate nanotubes
    S. Costamagna and J. A. Riera
    Phys. Rev. B 75, 205104 (2007)
  • Excitations with fractional spin less than 1/2 in frustrated magnetoelastic chains
    C.J. Gazza, A.O. Dobry, D.C. Cabra and T. Vekua
    Phys. Rev. B 75, 165104 (2007)
  • Theory of spin-Peierls transition beyond the adiabatic approximation
    A. Dobry, D. C. Cabra, and G. L. Rossini
    Phys. Rev. B 75, 045122 (2007)
  • Charge order and phonon renormalizations: Possible implications for cobaltates
    M. Bejas, A. Greco, and A. Foussats
    Phys. Rev. B 75, 033101 (2007)
  • Spectroscopic fingerprints of the frustrated magnetic order in Li2VOSiO4: A t–J model study
    I. J. Hamad, A. E. Trumper, and L. O. Manuel
    Physica B 398, 416 (2007)
  • Soliton deconfinement in a spin-Peierls system coupled by a frustrated interaction
    D. Mastrogiusseppe, C. J. Gazza, and A. Dobry
    cond-mat/0707.0422
2007

2007

  • Electronic properties of correlated metals in the vicinity of a charge-order transition: Optical spectroscopy of α-(BEDT-TTF)2MHg(SCN)4 (M=NH4, Rb, Tl)
    N. Drichko, M. Dressel, C. A. Kuntscher, A. Pashkin, A. Greco, J. Merino, and J. Schlueter
    Phys. Rev. B 74, 235121 (2006)
  • Anderson impurity in the one-dimensional Hubbard model for finite-size systems
    S. Costamagna, C. J. Gazza, M. E. Torio, and J. A. Riera
    Phys. Rev. B 74, 195103 (2006)
  • Phonon density of states of Sn in textured SnO under high pressure: Comparison of nuclear inelastic x-ray scattering spectra to a shell model
    H. Giefers, S. Koval, G. Wortmann, W. Sturhahn, E. E. Alp, and M. Y. Hu
    Phys. Rev. B 74, 094303 (2006)
  • Hole dynamics in canted antiferromagnets: Coexistence of many-body and free-like excitations
    I. J. Hamad, L. O. Manuel, G. Martinez, and A. E. Trumper
    Phys. Rev. B 74, 094417 (2006)
  • One-electron self-energies and spectral functions for the t-J model in the large-N limit
    M. Bejas, A. Greco, and A. Foussats
    Phys. Rev. B 73, 245104 (2006)
  • Quantum dot with ferromagnetic leads: A density-matrix renormalization group study
    C. J. Gazza, M. E. Torio, and J. A. Riera
    Phys. Rev. B 73, 193108 (2006)
  • Magnetization Plateaus Induced by a Coupling to the Lattice
    T. Vekua, D.C. Cabra, A. Dobry, C. Gazza, and D. Poilblanc
    Phys. Rev. Lett. 96 117205 (2006)
2005

2005

  • Quantum phase diagram of the generalized ionic Hubbard model for ABn chains
    M. E. Torio, A. A. Aligia, G. I. Japaridze, and B. Normand
    Phys. Rev. B 73, 115109 (2006)
  • Inhomogeneous charge textures stabilized by electron-phonon interactions in the t-J model
    José Riera and Adriana Moreo
    Phys. Rev. B 73, 014518 (2006)
  • Slater and Takagi defects in KH2PO4 from first principles
    J. Lasave, S. Koval, N. S. Dalal, and R. Migoni
    Phys. Rev. B 72, 104104 (2005)
  • Indications of electronic correlations in the 1∕5-filled two-dimensional conductor β″-(BEDO- TTF)5[CsHg(SCN)4]2
    N. Drichko, K. Petukhov, M. Dressel, O. Bogdanova, E. Zhilyaeva, R. Lyubovskaya, A. Greco, and J. Merino
    Phys. Rev. B 72, 024524 (2005)
  • Cooperative effect of phonons and electronic correlations for superconductivity in cobaltates
    A. Foussats, A. Greco, M. Bejas, and A. Muramatsu
    Phys. Rev. B 72, 020504 (2005)
  • Surface reconstruction and ferroelectricity in PbTiO3 thin films
    M. Sepliarsky, M. G. Stachiotti, and R. L. Migoni
    Phys. Rev. B 72, 014110 (2005)
  • First-principles study of ferroelectricity and isotope effects in H-bonded KH2PO4 crystals
    S. Koval, J. Kohanoff, J. Lasave, G. Colizzi, and R. L. Migoni
    Phys. Rev. B 71, 184102 (2005)
  • Pressure dependence of the melting mechanism at the limit of overheating in Lennard-Jones crystals
    L. Gómez, C. Gazza, H. Dacharry, L. Peñaranda, and A. Dobry
    Phys. Rev. B 71, 134106 (2005)
  • Spin exchange and superconductivity in a t-J′-V model for two-dimensional quarter-filled systems
    Andrés Greco, Jaime Merino, Adriana Foussats, and Ross H. McKenzie
    Phys. Rev. B 71, 144502 (2005)
  • Sistemas de electrones fuertemente correlacionados
  • Propiedades estructurales y electrónicas del grafeno
  • Magnetismo cuántico frustrado
  • Superconductividad
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