Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Rodriguez-Vega, M."'
Publikováno v:
Phys. Rev. B 105, 144425 - Published 20 April 2022
Structural, electronic and magnetic properties of bulk ilmenite CoTiO$_3$ are analyzed in the framework of density functional theory (DFT), using the generalized gradient approximation (GGA) and Hubbard-corrected approaches. We find that the G-type a
Externí odkaz:
http://arxiv.org/abs/2108.10847
Autor:
Rodriguez-Vega, M., Lin, Ze-Xun, Leonardo, A., Ernst, A., Chaudhary, G., Vergniory, M. G., Fiete, Gregory A.
Publikováno v:
Phys. Rev. B 102, 081117 (2020)
In bilayer CrI3, experimental and theoretical studies suggest that the magnetic order is closely related to the layer staking configuration. In this work, we study the effect of dynamical lattice distortions, induced by non-linear phonon coupling, in
Externí odkaz:
http://arxiv.org/abs/2003.11158
Publikováno v:
Phys. Rev. B 101, 174314 (2020)
Motivated by the quest for experimentally accessible dynamical probes of Floquet topological insulators, we formulate the linear response theory of a periodically driven system. We illustrate the applications of this formalism by giving general expre
Externí odkaz:
http://arxiv.org/abs/1912.12753
Publikováno v:
Phys. Rev. Research 1, 033085 (2019)
We study the electron and spin transport in a van der Waals system formed by one layer with strong spin-orbit coupling and a second layer without spin-orbit coupling, in the regime when the interlayer tunneling is random. We find that in the layer wi
Externí odkaz:
http://arxiv.org/abs/1904.01015
Publikováno v:
New J. Phys. 20, 093022 (2018)
We develop a low-frequency perturbation theory in the extended Floquet Hilbert space of a periodically driven quantum systems, which puts the high- and low-frequency approximations to the Floquet theory on the same footing. It captures adiabatic pert
Externí odkaz:
http://arxiv.org/abs/1805.01190
Publikováno v:
Phys. Rev. B 98, 041113 (2018)
We study quantum noise in a nonequilibrium, periodically driven, open system attached to static leads. Using a Floquet Green's function formalism we show, both analytically and numerically, that local voltage noise spectra can detect the rich structu
Externí odkaz:
http://arxiv.org/abs/1803.10646
Autor:
Rodriguez-Vega, M., Seradjeh, B.
Publikováno v:
Phys. Rev. Lett. 121, 036402 (2018)
We study the low-frequency dynamics of periodically driven one-dimensional systems hosting Floquet topological phases. We show, both analytically and numerically, in the low-frequency limit $\Omega\to0$, the topological invariants of a chirally-symme
Externí odkaz:
http://arxiv.org/abs/1706.05303
Publikováno v:
Phys. Rev. B 96, 235419 (2017)
The control of a ferromagnet's magnetization via only electric currents requires the efficient generation of current-driven spin-torques. In magnetic structures based on topological insulators (TIs) current-induced spin-orbit torques can be generated
Externí odkaz:
http://arxiv.org/abs/1610.04229
Autor:
Rodriguez-Vega, M., Simons, M. T., Radue, E., Kittiwatanakul, S., Lu, J., Wolf, S. A., Lukaszew, R. A., Novikova, I., Rossi, E.
Publikováno v:
Phys. Rev. B 92, 115420 (2015)
We study the thermal relaxation dynamics of VO$_2$ films after the ultrafast photo-induced metal-insulator transition for two VO$_2$ film samples grown on Al$_2$O$_3$ and TiO$_2$ substrates. We find two orders of magnitude difference in the recovery
Externí odkaz:
http://arxiv.org/abs/1504.05954
Publikováno v:
Phys. Rev. B 88, 235402 (2013)
We discuss the conditions under which the predicted (but not yet observed) zero-field interlayer excitonic condensation in double layer graphene has a critical temperature high enough to allow detection. Crucially, disorder arising from charged impur
Externí odkaz:
http://arxiv.org/abs/1305.4936