Search Results - "Ferreira, Gerson J"

Magnetically defined qubits on 3D topological insulators by Ferreira, Gerson J, Loss, Daniel

“…We explore potentials that break time-reversal symmetry to confine the surface states of 3D topological insulators into quantum wires and quantum dots. A…”
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Helical states in curved bilayer graphene by Klinovaja, Jelena, Ferreira, Gerson J., Loss, Daniel

“…We study spin effects of quantum wires formed in bilayer graphene by electrostatic confinement. With a proper choice of the confinement direction, we show that…”
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Low-bias negative differential resistance in graphene nanoribbon superlattices by Ferreira, Gerson J., Leuenberger, Michael N., Loss, Daniel, Egues, J. Carlos

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Suppressed topological phase transitions due to nonsymmorphism in SnTe stacking by Araújo, Augusto L., Ferreira, Gerson J., Schmidt, Tome M.

“…We combine first principles calculations with a group theory analysis to investigate topological phase transitions in the stacking of SnTe monolayers. We show…”
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Conductance and Kondo Interference beyond Proportional Coupling by Dias da Silva, Luis G G V, Lewenkopf, Caio H, Vernek, Edson, Ferreira, Gerson J, Ulloa, Sergio E

“…The transport properties of nanostructured systems are deeply affected by the geometry of the effective connections to metallic leads. In this work we derive a…”
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Collapse of ρxx Ringlike Structures in 2DEGs Under Tilted Magnetic Fields by Ferreira, Gerson J., Egues, J. Carlos

“…In the quantum Hall regime, the longitudinal resistivity ρ xx plotted as a density–magnetic-field ( n 2 D – B ) diagram displays ringlike structures due to the…”
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Many-Body Effects on the ρ x x Ringlike Structures in Two-Subband Wells by Ferreira, Gerson J., Freire, Henrique J. P., Egues, J. Carlos

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Phase transitions and scale invariance in topological Anderson insulators by Assunção, Bryan D, Ferreira, Gerson J, Lewenkopf, Caio H

“…Phys. Rev. B 109, L201102 (2024) We investigate disordered-driven transitions between trivial and topological insulator (TI) phases in two-dimensional (2D)…”
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Proceedings of the 20th Latin American Symposium on Solid State Physics (SLAFES XX) held in March 2011 in Maragogi, AL, Brazil by Penteado, Poliana H., Ferreira, Gerson J., Sipahi, Guilherme M., Carlos Egues, J.

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Charge-Spin Conversion in Two-Subband Quantum Wells with Conventional and Unconventional Rashba Spin-Orbit Coupling by Ferreira, Gerson J, Wang, Boyu, Fu, Jiyong, Raimondi, Roberto

“…The reciprocal interconversion between spin polarization and charge current (CSC) is the focus of intensive theoretical and experimental investigation in…”
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DFT2kp: effective kp models from ab-initio data by Cassiano, João Victor V, Araújo, Augusto L, Junior, Paulo E. Faria, Ferreira, Gerson J

“…SciPost Phys. Codebases 25 (2024) The $\mathbf{k}\cdot\mathbf{p}$ method, combined with group theory, is an efficient approach to obtain the low energy…”
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Proceedings of the PASPS V Conference Held in August 2008 in Foz do Iguaçu, Brazil by Ferreira, Gerson J., Sipahi, Guilherme M., Gobato, Yara G., Egues, J. Carlos

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Many-body effects on the rho(xx) ringlike structures in two-subband wells by Ferreira, Gerson J, Freire, Henrique J P, Egues, J Carlos

“…The longitudinal resistivity rho(xx) of two-dimensional electron gases formed in wells with two subbands displays ringlike structures when plotted in a…”
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5th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductors (PASPS V), Foz do Iguaçu, Brazil, August 3-6, 2008 by FERREIRA, Gerson J, SIPAHI, Guilherme M, GOBATO, Yara G, EGUES, J. Carlos

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Orbital pseudospin-momentum locking in two-dimensional chiral borophene by de Lima, Felipe Crasto, Ferreira, Gerson J, Miwa, Roberto H

“…Nano Letters 2019 Recently, orbital-textures have been found in Rashba and topological insulator (TI) surface states as a result of the spin-orbit coupling…”
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Magnetically Defined Qubits on 3D Topological Insulators by Ferreira, Gerson J, Loss, Daniel

“…Phys. Rev. Lett. 111, 106802 (2013) We explore potentials that break time-reversal symmetry to confine the surface states of 3D topological insulators into…”
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Zitterbewegung and bulk-edge Landau-Zener tunneling in topological insulators by Ferreira, Gerson J, Maciel, Renan P, Penteado, Poliana H, Egues, J. Carlos

“…Phys. Rev. B 98, 165120 (2018) We investigate the ballistic zitterbewegung dynamics and the Landau-Zener tunneling between edge and bulk states of wave packets…”
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Topological flat band, Dirac fermions and quantum spin Hall phase in 2D Archimedean lattices by de Lima, F. Crasto, Ferreira, Gerson J, Miwa, R. H

“…Phys. Chem. Chem. Phys., 2019 Materials with designed properties arises in a synergy between theoretical and experimental approaches. In this study we explore…”
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Spin drift and diffusion in one- and two-subband helical systems by Ferreira, Gerson J, Hernandez, Felix G. G, Altmann, Patrick, Salis, Gian

“…Phys. Rev. B 95, 125119 (2017) The theory of spin drift and diffusion in two-dimensional electron gases is developed in terms of a random walk model…”
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Tuning the topological states in metal-organic bilayers by de Lima, F. Crasto, Ferreira, Gerson J, Miwa, R. H

“…Phys. Rev. B 96, 115426 (2017) We have investigated the energetic stability and the electronic properties of metal-organic topological insulators bilayers…”
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