Spin-Polarized Tunable Photocurrents.

Berdakin, Matías; Rodríguez-Mena, Esteban A; Foa Torres, Luis E F

Berdakin, Matías; Rodríguez-Mena, Esteban A; Foa Torres, Luis E F.

Afiliação

Berdakin M; INFIQC (CONICET-UNC), Ciudad Universitaria, Pabellón Argentina, 5000 Córdoba, Argentina.
Rodríguez-Mena EA; Departamento de Química Teórica y Computacional, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, X5000HUA Córdoba, Argentina.
Foa Torres LEF; Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile.

Nano Lett ; 21(7): 3177-3183, 2021 Apr 14.

Article em En | MEDLINE | ID: mdl-33819037

RESUMO

Harnessing the unique features of topological materials for the development of a new generation of topological based devices is a challenge of paramount importance. Using Floquet scattering theory combined with atomistic models we study the interplay among laser illumination, spin, and topology in a two-dimensional material with spin-orbit coupling. Starting from a topological phase, we show how laser illumination can selectively disrupt the topological edge states depending on their spin. This is manifested by the generation of pure spin photocurrents and spin-polarized charge photocurrents under linearly and circularly polarized laser illumination, respectively. Our results open a path for the generation and control of spin-polarized photocurrents.

Palavras-chave

Spin photocurrents; Spin−orbit coupling; Topological insulators; Two-dimensional materials

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Argentina País de publicação: Estados Unidos

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