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@ARTICLE{Mokrousov:1008348,
author = {Mokrousov, Yuriy and Merte, Maximillian and Freimuth, Frank
and Go, Dongwook and Adamantopoulos, Theodoros and Lux, F.
R. and Plucinski, Lukasz and Gomonay, O. and Blügel,
Stefan},
title = {{P}hotocurrents, inverse {F}araday effect, and photospin
{H}all effect in {M}n2{A}u},
journal = {APL materials},
volume = {11},
number = {7},
issn = {2166-532X},
address = {Melville, NY},
publisher = {AIP Publ.},
reportid = {FZJ-2023-02294},
pages = {071106},
year = {2023},
abstract = {Among antiferromagnetic materials, Mn2Au is one of the most
intensively studied, and it serves as a very popular
platform for testing various ideas related to
antiferromagnetic magnetotransport and dynamics. Since
recently, this material has also attracted considerable
interest in the context of optical properties and
optically-driven antiferromagnetic switching. In this work,
we use first principles methods to explore the physics of
charge photocurrents, spin photocurrents, and the inverse
Faraday effect in antiferromagnetic Mn2Au. We predict the
symmetry and magnitude of these effects and speculate that
they can be used for tracking the dynamics of staggered
moments during switching. Our calculations reveal the
emergence of large photocurrents of spin in collinear Mn2Au,
whose properties can be understood as a result of a
non-linear optical version of the spin Hall effect, which we
refer to as the photospin Hall effect, encoded into the
relation between the driving charge and resulting spin
photocurrents. Moreover, we suggest that even a very small
canting in Mn2Au can give rise to colossal spin
photocurrents that are chiral in flavor. We conclude that
the combination of staggered magnetization with the
structural and electronic properties of this material
results in a unique blend of prominent photocurrents, which
makes Mn2Au a unique platform for advanced optospintronics
applications.},
cin = {PGI-1 / IAS-1 / JARA-HPC / JARA-FIT},
ddc = {600},
cid = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
$I:(DE-82)080012_20140620$ / $I:(DE-82)080009_20140620$},
pnm = {5211 - Topological Matter (POF4-521) / DFG project
437337265 - Spin+Optik: Theoretischer Entwurf von
antiferromagnetischer Optospintronik (A11) (437337265) / DFG
project 444844585 - Statische und dynamische Kopplung von
Gitter- und elektronischen Freiheitsgraden in magnetisch
geordneten Übergangsmetalldichalkogenieden (B06)
(444844585)},
pid = {G:(DE-HGF)POF4-5211 / G:(GEPRIS)437337265 /
G:(GEPRIS)444844585},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001023585200009},
doi = {10.1063/5.0149955},
url = {https://juser.fz-juelich.de/record/1008348},
}