Validity of the relativistic phase shift model for the extrinsic spin Hall effect in dilute metal alloys

Recently, a generalized relativistic phase shift model was proposed (Fedorovet al 2013 Phys. Rev. B 88 085116) for the description of the skew-scattering contribution to the spin Hall effect caused by impurities. Here, we inspect this model by means of a systematic comparison with the results of fir...

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Bibliographic Details
Published inJournal of physics. Condensed matter Vol. 26; no. 27; p. 274207
Main Authors Johansson, A, Herschbach, C, Fedorov, D V, Gradhand, M, Mertig, I
Format Journal Article
LanguageEnglish
Published England IOP Publishing 09.07.2014
Subjects
Algorithms
Alloys
Alloys - chemistry
Computer Simulation
Condensed matter
dilute metal alloys
Fermi surfaces
Hall effect
Impurities
Magnetic Fields
Mathematical models
Metals - chemistry
Models, Chemical
Phase shift
Phase Transition
spin Hall effect
spintronics
Substitutional impurities
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Summary:Recently, a generalized relativistic phase shift model was proposed (Fedorovet al 2013 Phys. Rev. B 88 085116) for the description of the skew-scattering contribution to the spin Hall effect caused by impurities. Here, we inspect this model by means of a systematic comparison with the results of first-principles calculations performed for several metallic host systems with different substitutional impurities. It is found that for its proper application, the differences between impurity and host phase shifts should be used as input parameters. Generally, the model provides good qualitative agreement with ab initio results for hosts with a free-electron-like Fermi surface and a relatively weak spin-orbit coupling, but fails otherwise.
Bibliography:JPCM-100694.R1
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/26/27/274207