First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi

First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi

We present an ab initio study of the influence of the tetragonal distortion, on the static and dynamic (Gilbert damping parameter) magnetic properties of a Co2MnSi crystal. This tetragonal distortion can for instance be due to strain, when Co2MnSi is grown on a substrate with a small lattice mismatc...

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Main Authors: B. Pradines, R. Arras, L. Calmels
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4974525
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spelling doaj-8e76b85d7f4944ac88a50602c2919de02020-11-24T21:29:00ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056009056009-410.1063/1.4974525136791ADVFirst-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSiB. Pradines0R. Arras1L. Calmels2CEMES-CNRS and Université de Toulouse, 29 rue Jeanne Marvig, F-31055 Toulouse, FranceCEMES-CNRS and Université de Toulouse, 29 rue Jeanne Marvig, F-31055 Toulouse, FranceCEMES-CNRS and Université de Toulouse, 29 rue Jeanne Marvig, F-31055 Toulouse, FranceWe present an ab initio study of the influence of the tetragonal distortion, on the static and dynamic (Gilbert damping parameter) magnetic properties of a Co2MnSi crystal. This tetragonal distortion can for instance be due to strain, when Co2MnSi is grown on a substrate with a small lattice mismatch. Using fully relativistic Korringa-Kohn-Rostoker (KKR) calculations, in conjunction with the coherent potential approximation (CPA) to describe atomic disorder and the linear response formalism to compute the Gilbert damping parameter, we show that a tetragonal distortion can substantially change the properties of Co2MnSi, in a way which depends on the kind of atomic disorder.http://dx.doi.org/10.1063/1.4974525
collection DOAJ
language English
format Article
sources DOAJ
author B. Pradines
R. Arras
L. Calmels
spellingShingle B. Pradines
R. Arras
L. Calmels
First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
AIP Advances
author_facet B. Pradines
R. Arras
L. Calmels
author_sort B. Pradines
title First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
title_short First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
title_full First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
title_fullStr First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
title_full_unstemmed First-principles calculation of the effects of tetragonal distortions on the Gilbert damping parameter of Co2MnSi
title_sort first-principles calculation of the effects of tetragonal distortions on the gilbert damping parameter of co2mnsi
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-05-01
description We present an ab initio study of the influence of the tetragonal distortion, on the static and dynamic (Gilbert damping parameter) magnetic properties of a Co2MnSi crystal. This tetragonal distortion can for instance be due to strain, when Co2MnSi is grown on a substrate with a small lattice mismatch. Using fully relativistic Korringa-Kohn-Rostoker (KKR) calculations, in conjunction with the coherent potential approximation (CPA) to describe atomic disorder and the linear response formalism to compute the Gilbert damping parameter, we show that a tetragonal distortion can substantially change the properties of Co2MnSi, in a way which depends on the kind of atomic disorder.
url http://dx.doi.org/10.1063/1.4974525
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AT rarras firstprinciplescalculationoftheeffectsoftetragonaldistortionsonthegilbertdampingparameterofco2mnsi
AT lcalmels firstprinciplescalculationoftheeffectsoftetragonaldistortionsonthegilbertdampingparameterofco2mnsi
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