Artículo
Floquet interface states in illuminated three-dimensional topological insulators
Calvo, Hernan Laureano
; Foa Torres, Luis Eduardo Francisco
; Pérez Piskunow, Pablo Matías
; Balseiro, Carlos Antonio
; Usaj, Gonzalo
Fecha de publicación:
06/2015
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter and Materials Physics
ISSN:
1098-0121
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Recent experiments showed that the surface of a three-dimensional topological insulator develops gaps in the Floquet-Bloch band spectrum when illuminated with a circularly polarized laser. These Floquet-Bloch bands are characterized by nontrivial Chern numbers which only depend on the helicity of the polarization of the radiation field. Here we propose a setup consisting of a pair of counterrotating lasers, and show that one-dimensional chiral states emerge at the interface between the two lasers. These interface states turn out to be spin polarized and may trigger interesting applications in the field of optoelectronics and spintronics.
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Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Calvo, Hernan Laureano; Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Balseiro, Carlos Antonio; Usaj, Gonzalo; Floquet interface states in illuminated three-dimensional topological insulators; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 24; 6-2015; 241404-241404
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