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@ARTICLE{Long:824918,
author = {Long, Nguyen Hoang and Mavropoulos, Phivos and Bauer, David
and Zimmermann, Bernd and Mokrousov, Yuriy and Blügel,
Stefan},
title = {{S}trong spin-orbit fields and {D}yakonov-{P}erel spin
dephasing in supported metallic films},
journal = {Physical review / B},
volume = {94},
number = {18},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2016-07419},
pages = {180406},
year = {2016},
abstract = {Spin dephasing by the Dyakonov-Perel mechanism in metallic
films deposited on insulating substrates is revealed, and
quantitatively examined by means of density functional
calculations combined with a kinetic equation. The
surface-to-substrate asymmetry, probed by the metal wave
functions in thin films, is found to produce strong
spin-orbit fields and a fast Larmor precession, giving a
dominant contribution to spin decay over the Elliott-Yafet
spin relaxation up to a thickness of 70 nm. The spin
dephasing is oscillatory in time with a rapid
(subpicosecond) initial decay. However, parts of the Fermi
surface act as spin traps, causing a persistent tail signal
lasting 1000 times longer than the initial decay time. It is
also found that the decay depends on the direction of the
initial spin polarization, resulting in a spin-dephasing
anisotropy of $200\%$ in the examined cases.},
cin = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
Controlling Configuration-Based Phenomena (POF3-143) /
Topological transport in real materials from ab initio
$(jias12_20121101)$},
pid = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143 /
$G:(DE-Juel1)jias12_20121101$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000388465200002},
doi = {10.1103/PhysRevB.94.180406},
url = {https://juser.fz-juelich.de/record/824918},
}