Zobrazeno 1 - 10
of 444
pro vyhledávání: '"MUNIZ, R. A."'
We show that orbital currents can describe the transport of orbital magnetic moments of Bloch states in models where the formalism based on valley current is not applicable. As a case study, we consider Kekul\'e distorted graphene. We begin by analyz
Externí odkaz:
http://arxiv.org/abs/2404.12072
Autor:
Cysne, Tarik P., Costa, Marcio, Nardelli, Marco Buongiorno, Muniz, R. B., Rappoport, Tatiana G.
Publikováno v:
Phys. Rev. B 108, 165415 (2023)
Phosphorene, a monolayer of black phosphorus, is a two-dimensional material that lacks a multivalley structure in the Brillouin zone and has negligible spin-orbit coupling. This makes it a promising candidate for investigating the orbital Hall effect
Externí odkaz:
http://arxiv.org/abs/2307.03866
Autor:
Cysne, Tarik P., Guimarães, Filipe S. M., Canonico, Luis M., Costa, Marcio, Rappoport, Tatiana G., Muniz, R. B.
Publikováno v:
Phys. Rev. B 107, 115402 (2023)
The orbital magnetoelectric effect (OME) generically refers to the appearance of an orbital magnetization induced by an applied electric field. Here, we show that nanoribbons of transition metal dichalcogenides (TMDs) with zigzag (ZZ) edges may exhib
Externí odkaz:
http://arxiv.org/abs/2209.09087
Autor:
Castro-González, A., Alonso, E. Díez, Blanco, J. Menéndez, Livingston, J., de Leon, J. P., Lillo-Box, J., Korth, J., Menéndez, S. Fernández, Recio, J. M., Izquierdo-Ruiz, F., Lozano, A. Coya, de la Cuesta, F. García, Hernández, N. Gómez, Blanco, J. R. Vidal, Díaz, R. Hevia, Silva, R. Pardo, Acevedo, S. Pérez, Ruiz, J. Polancos, Tijerín, P. Padilla, García, D. Vázquez, Gómez, S. L. Suárez, Riesgo, F. García, Gutiérrez, C. González, Bonavera, L., González-Nuevo, J., Pereira, C. Rodríguez, Lasheras, F. Sánchez, Rodríguez, M. L. Sánchez, Muñiz, R., Rodríguez, J. D. Santos, Juez, F. J. de Cos
We present the first results of K2-OjOS, a collaborative project between professional and amateur astronomers primarily aimed to detect, characterize, and validate new extrasolar planets. For this work, 10 amateur astronomers looked for planetary sig
Externí odkaz:
http://arxiv.org/abs/2109.03346
Autor:
Bezerra-Neto, M. M., Kvashnin, Y. O., Bergman, A., Muniz, R. B., Eriksson, O., Katsnelson, M. I., Klautau, A. B.
Stabilization of unusual spin-orbit driven magnetic orderings are achieved for chains of Mn atoms deposited on a W(110) substrate. First-principles electronic structure calculations show that the ground state spin configuration is non-collinear, form
Externí odkaz:
http://arxiv.org/abs/2105.00348
Autor:
Cysne, Tarik P., Guimarães, Filipe S. M., Canonico, Luis M., Rappoport, Tatiana G., Muniz, R. B.
Publikováno v:
Phys. Rev. B 104, 165403 (2021)
Profiles of the spin and orbital angular momentum accumulations induced by a longitudinally applied electric field are explored in nanoribbons of $p$-band systems with a honeycomb lattice. We show that nanoribbons with zigzag borders can exhibit orbi
Externí odkaz:
http://arxiv.org/abs/2101.05049
Autor:
Cysne, Tarik P., Costa, Marcio, Canonico, Luis M., Nardelli, M. Buongiorno, Muniz, R. B., Rappoport, Tatiana G.
Publikováno v:
Phys. Rev. Lett. 126, 056601 (2021)
It has been recently shown that monolayers of transition metal dichalcogenides (TMDs) in the 2H structural phase exhibit relatively large orbital Hall conductivity plateaus within their energy band gaps, where their spin Hall conductivities vanish. H
Externí odkaz:
http://arxiv.org/abs/2010.07894
Publikováno v:
Phys. Rev. 102, 0755409 (2020)
It is straightforward to calculate the conductance of a quantum device once all its scattering centers are fully specified. However, to do this in reverse, i.e., to find information about the composition of scatterers in a device from its conductance
Externí odkaz:
http://arxiv.org/abs/2007.12504
Autor:
González, A. Castro, Alonso, E. Díez, Blanco, J. Menéndez, Livingston, John H., de Leon, Jerome P., Gómez, S. L. Suárez, Gutiérrez, C. González, Riesgo, F. García, Bonavera, L., Rodríguez, F. J. Iglesias, Muñiz, R., Everett, Mark E., Scott, N. J., Howell, Steve B., Ciardi, David R., Gonzales, Erica J., Schlieder, Joshua E., Juez, F. J. de Cos
We analyzed the photometry of 20038 cool stars from campaigns 12, 13, 14 and 15 of the K2 mission in order to detect, characterize and validate new planetary candidates transiting low-mass stars. We present a catalogue of 25 new periodic transit-like
Externí odkaz:
http://arxiv.org/abs/2007.12744
Autor:
Canonico, Luis M., Cysne, Tarik P., Molina-Sanchez, Alejandro, Muniz, R. B., Rappoport, Tatiana G.
Publikováno v:
Phys. Rev. B 101, 161409 (2020)
We show that H-phase transition metal dichalcogenides (TMDs) monolayers such as MoS$_2$ and WSe$_2$, are orbital Hall insulators. They present very large orbital Hall conductivity plateaus in their semiconducting gap, where the spin Hall conductivity
Externí odkaz:
http://arxiv.org/abs/2001.03592