This title appears in the Scientific Report :
2024
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.132.076901 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2024-01657 in citations.
Orbital Rashba Effect as a Platform for Robust Orbital Photocurrents
Orbital Rashba Effect as a Platform for Robust Orbital Photocurrents
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 re...
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Personal Name(s): | Adamantopoulos, T. (Corresponding author) |
---|---|
Merte, M. / Go, D. / Freimuth, F. / Blügel, S. / Mokrousov, Y. | |
Contributing Institute: |
Quanten-Theorie der Materialien; PGI-1 |
Published in: | Physical review letters, 132 (2024) 7, S. 076901 |
Imprint: |
College Park, Md.
APS
2024
|
DOI: |
10.1103/PhysRevLett.132.076901 |
DOI: |
10.34734/FZJ-2024-01657 |
Document Type: |
Journal Article |
Research Program: |
Cold Opto-Magnetism for Random Access Devices Statische und dynamische Kopplung von Gitter- und elektronischen Freiheitsgraden in magnetisch geordneten Übergangsmetalldichalkogenieden (B06) Spin+AFM-Dynamik: Antiferromagnetismus durch Drehimpulsströme und Gitterdynamik (A11) Topological Matter |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2024-01657 in citations.
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. |