Search Results - "Barrios Vargas, J. E."

Doped graphene: the interplay between localization and frustration due to the underlying triangular symmetry by Barrios-Vargas, J E, Naumis, Gerardo G

“…An intuitive explanation of the increase in localization observed near the Dirac point in doped graphene is presented. To do this, we renormalize the tight…”
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Topological states of non-Hermitian systems by Martinez Alvarez, V. M., Barrios Vargas, J. E., Berdakin, M., Foa Torres, L. E. F.

“…Recently, the search for topological states of matter has turned to non-Hermitian systems, which exhibit a rich variety of unique properties without Hermitian…”
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Pseudo-gap opening and Dirac point confined states in doped graphene by Barrios-Vargas, J.E., Naumis, Gerardo G.

“…The appearance of a pseudo-gap and the build up of states around the Dirac point for doped graphene can be elucidated by an analysis of the density of states…”
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Electrical conductivity and resonant states of doped graphene considering next-nearest neighbor interaction by Barrios-Vargas, J.E., Naumis, Gerardo G.

“…The next-nearest neighbor interaction (NNN) is included in a tight-binding Kubo formula calculation of the electronic spectrum and conductivity of doped…”
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Effective magnetic field induced by inhomogeneous Fermi velocity in strained honeycomb structures by Oliva-Leyva, M, Barrios-Vargas, J. E, de la Cruz, G. Gonzalez

“…Phys. Rev. B 102, 035447 (2020) In addition to the known pseudomagnetic field, nonuniform strains independently induce a position-dependent Fermi velocity…”
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Fingerprints of a position-dependent Fermi velocity on scanning tunnelling spectra of strained graphene by Oliva-Leyva, M, Barrios-Vargas, J. E, Wang, Chumin

“…J. Phys.: Condens. Matter 30 085702 (2018) Nonuniform strain in graphene induces a position dependence of the Fermi velocity, as recently demonstrated by…”
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Topological states of non-Hermitian systems by Alvarez, V. M. Martinez, Vargas, J. E. Barrios, Berdakin, M, Torres, L. E. F. Foa

“…Eur. Phys. J. Special Topics 227, 1295 (2018) Recently, the search for topological states of matter has turned to non-Hermitian systems, which exhibit a rich…”
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Electrical and thermal transport in coplanar polycrystalline graphene-hBN heterostructures by Vargas, J. E. Barrios, Mortazavi, B, Cummings, A. W, Martinez-Gordillo, R, Pruneda, M, Colombo, L, Rabczuk, T, Roche, S

“…We present a theoretical study of electronic and thermal transport in polycrystalline heterostructures combining graphene (G) and hexagonal boron nitride (hBN)…”
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Non-Hermitian robust edge states in one-dimension: Anomalous localization and eigenspace condensation at exceptional points by Alvarez, V. M. Martinez, Vargas, J. E. Barrios, Torres, L. E. F. Foa

“…Phys. Rev. B 97, 121401 (2018) Capital to topological insulators, the bulk-boundary correspondence ties a topological invariant computed from the bulk…”
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Critical wave functions in disordered graphene by Barrios-Vargas, J. E, Naumis, Gerardo G

“…In order to elucidate the presence of non-localized states in doped graphene, an scaling analysis of the wave function moments known as inverse participation…”
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Electrical conductivity and resonant states of doped graphene considering next-nearest neighbor interaction by Barrios-Vargas, J. E, Naumis, Gerardo G

“…Phil. Mag. 91, 3844-3857 (2011) The next-nearest neighbor interaction (NNN) is included in a tight-binding calculation of the electronic spectrum and…”
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Directional control of charge and valley currents in a graphene-based device by Berdakin, M, Vargas, J. E. Barrios, Torres, L. E. F. Foa

“…We propose a directional switching effect in a metallic device. To such end we exploit a graphene-based device with a three-terminal geometry in the presence…”
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Electron localization in disordered graphene: multifractal properties of the wavefunctions by Barrios-Vargas, J. E, Naumis, Gerardo G

“…An analysis of the electron localization properties in doped graphene is performed by doing a numerical multifractal analysis. By obtaining the singularity…”
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