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Orbital Rashba Effect as a Platform for Robust Orbital Photocurrents.
Adamantopoulos, T; Merte, M; Go, D; Freimuth, F; Blügel, S; Mokrousov, Y.
Afiliación
  • Adamantopoulos T; Peter Grünberg Institut, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany.
  • Merte M; Department of Physics, RWTH Aachen University, 52056 Aachen, Germany.
  • Go D; Peter Grünberg Institut, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany.
  • Freimuth F; Department of Physics, RWTH Aachen University, 52056 Aachen, Germany.
  • Blügel S; Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany.
  • Mokrousov Y; Peter Grünberg Institut, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany.
Phys Rev Lett ; 132(7): 076901, 2024 Feb 16.
Article en En | MEDLINE | ID: mdl-38427860
ABSTRACT
Orbital current has emerged over the past years as one of the key novel concepts in magnetotransport. Here, we demonstrate that laser pulses can be used to generate large and robust nonrelativistic orbital currents in systems where the inversion symmetry is broken by the orbital Rashba effect. By referring to model and first principles tools, we demonstrate that orbital Rashba effect, accompanied by crystal field splitting, can mediate robust orbital photocurrents without a need for spin-orbit interaction even in metallic systems. We show that such nonrelativistic orbital photocurrents are translated into derivative photocurrents of spin when relativistic effects are taken into account. We thus promote orbital photocurrents as a promising platform for optical generation of currents of angular momentum, and discuss their possible applications.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Alemania
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