Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films

Spin-wave dynamics in full-Heusler Co(2)FeAl(0.5)Si(0.5) films are studied using all-optical pump-probe magneto-optical polar Kerr spectroscopy. Backward volume magnetostatic spin-wave (BVMSW) mode is observed in films with thickness ranging from 20 to 100 nm besides perpendicular standing spin-wave...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Zhifeng, Yan, Yong, Li, Shufa, Xu, Xiaoguang, Jiang, Yong, Lai, Tianshu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307351/
https://www.ncbi.nlm.nih.gov/pubmed/28195160
http://dx.doi.org/10.1038/srep42513
_version_ 1782507356412706816
author Chen, Zhifeng
Yan, Yong
Li, Shufa
Xu, Xiaoguang
Jiang, Yong
Lai, Tianshu
author_facet Chen, Zhifeng
Yan, Yong
Li, Shufa
Xu, Xiaoguang
Jiang, Yong
Lai, Tianshu
author_sort Chen, Zhifeng
collection PubMed
description Spin-wave dynamics in full-Heusler Co(2)FeAl(0.5)Si(0.5) films are studied using all-optical pump-probe magneto-optical polar Kerr spectroscopy. Backward volume magnetostatic spin-wave (BVMSW) mode is observed in films with thickness ranging from 20 to 100 nm besides perpendicular standing spin-wave (PSSW) mode, and found to be excited more efficiently than the PSSW mode. The field dependence of the effective Gilbert damping parameter appears especial extrinsic origin. The relationship between the lifetime and the group velocity of BVMSW mode is revealed. The frequency of BVMSW mode does not obviously depend on the film thickness, but the lifetime and the effective damping appear to do so. The simultaneous excitation of BVMSW and PSSW in Heusler alloy films as well as the characterization of their dynamic behaviors may be of interest for magnonic and spintronic applications.
format Online
Article
Text
id pubmed-5307351
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-53073512017-02-22 Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films Chen, Zhifeng Yan, Yong Li, Shufa Xu, Xiaoguang Jiang, Yong Lai, Tianshu Sci Rep Article Spin-wave dynamics in full-Heusler Co(2)FeAl(0.5)Si(0.5) films are studied using all-optical pump-probe magneto-optical polar Kerr spectroscopy. Backward volume magnetostatic spin-wave (BVMSW) mode is observed in films with thickness ranging from 20 to 100 nm besides perpendicular standing spin-wave (PSSW) mode, and found to be excited more efficiently than the PSSW mode. The field dependence of the effective Gilbert damping parameter appears especial extrinsic origin. The relationship between the lifetime and the group velocity of BVMSW mode is revealed. The frequency of BVMSW mode does not obviously depend on the film thickness, but the lifetime and the effective damping appear to do so. The simultaneous excitation of BVMSW and PSSW in Heusler alloy films as well as the characterization of their dynamic behaviors may be of interest for magnonic and spintronic applications. Nature Publishing Group 2017-02-14 /pmc/articles/PMC5307351/ /pubmed/28195160 http://dx.doi.org/10.1038/srep42513 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chen, Zhifeng
Yan, Yong
Li, Shufa
Xu, Xiaoguang
Jiang, Yong
Lai, Tianshu
Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title_full Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title_fullStr Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title_full_unstemmed Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title_short Simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-Heusler Co(2)FeAl(0.5)Si(0.5) films
title_sort simultaneous laser excitation of backward volume and perpendicular standing spin waves in full-heusler co(2)feal(0.5)si(0.5) films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307351/
https://www.ncbi.nlm.nih.gov/pubmed/28195160
http://dx.doi.org/10.1038/srep42513
work_keys_str_mv AT chenzhifeng simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films
AT yanyong simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films
AT lishufa simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films
AT xuxiaoguang simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films
AT jiangyong simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films
AT laitianshu simultaneouslaserexcitationofbackwardvolumeandperpendicularstandingspinwavesinfullheuslerco2feal05si05films

Ejemplares similares