Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys

A spontaneous exchange bias (SEB) discovered by Wang et al. [Phys. Rev. Lett. 106 (2011) 077203.] after zero-field cooling (ZFC) has attracted recent attention due to its interesting physics. In this letter, we report a giant SEB tuned by Sb-doping in Ni(50)Mn(38)Ga(12-x)Sb(x) Heusler alloys. Such a...

Descripción completa

Detalles Bibliográficos
Autores principales: Tian, Fanghua, Cao, Kaiyan, Zhang, Yin, Zeng, Yuyang, Zhang, Rui, Chang, Tieyan, Zhou, Chao, Xu, Minwei, Song, Xiaoping, Yang, Sen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4967862/
https://www.ncbi.nlm.nih.gov/pubmed/27478090
http://dx.doi.org/10.1038/srep30801
_version_ 1782445580976390144
author Tian, Fanghua
Cao, Kaiyan
Zhang, Yin
Zeng, Yuyang
Zhang, Rui
Chang, Tieyan
Zhou, Chao
Xu, Minwei
Song, Xiaoping
Yang, Sen
author_facet Tian, Fanghua
Cao, Kaiyan
Zhang, Yin
Zeng, Yuyang
Zhang, Rui
Chang, Tieyan
Zhou, Chao
Xu, Minwei
Song, Xiaoping
Yang, Sen
author_sort Tian, Fanghua
collection PubMed
description A spontaneous exchange bias (SEB) discovered by Wang et al. [Phys. Rev. Lett. 106 (2011) 077203.] after zero-field cooling (ZFC) has attracted recent attention due to its interesting physics. In this letter, we report a giant SEB tuned by Sb-doping in Ni(50)Mn(38)Ga(12-x)Sb(x) Heusler alloys. Such an SEB was switched on below the blocking temperature of approximately 50 K. The maximum exchange bias H(E) can arrive at 2930 Oe in a Ni(50)Mn(38)Ga(10)Sb(2) sample after ZFC to 2 K. Further studies showed that this SEB was attributable to interaction of superspin glass (SSG) and antiferromagnetic matix, which was triggered by the crossover of SSG from canonical spin glass to a cluster spin glass. Our results not only explain the underlying physics of SEB, but also provide a way to tune and control the SEB performance.
format Online
Article
Text
id pubmed-4967862
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-49678622016-08-10 Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys Tian, Fanghua Cao, Kaiyan Zhang, Yin Zeng, Yuyang Zhang, Rui Chang, Tieyan Zhou, Chao Xu, Minwei Song, Xiaoping Yang, Sen Sci Rep Article A spontaneous exchange bias (SEB) discovered by Wang et al. [Phys. Rev. Lett. 106 (2011) 077203.] after zero-field cooling (ZFC) has attracted recent attention due to its interesting physics. In this letter, we report a giant SEB tuned by Sb-doping in Ni(50)Mn(38)Ga(12-x)Sb(x) Heusler alloys. Such an SEB was switched on below the blocking temperature of approximately 50 K. The maximum exchange bias H(E) can arrive at 2930 Oe in a Ni(50)Mn(38)Ga(10)Sb(2) sample after ZFC to 2 K. Further studies showed that this SEB was attributable to interaction of superspin glass (SSG) and antiferromagnetic matix, which was triggered by the crossover of SSG from canonical spin glass to a cluster spin glass. Our results not only explain the underlying physics of SEB, but also provide a way to tune and control the SEB performance. Nature Publishing Group 2016-08-01 /pmc/articles/PMC4967862/ /pubmed/27478090 http://dx.doi.org/10.1038/srep30801 Text en Copyright © 2016, 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
Tian, Fanghua
Cao, Kaiyan
Zhang, Yin
Zeng, Yuyang
Zhang, Rui
Chang, Tieyan
Zhou, Chao
Xu, Minwei
Song, Xiaoping
Yang, Sen
Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title_full Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title_fullStr Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title_full_unstemmed Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title_short Giant spontaneous exchange bias triggered by crossover of superspin glass in Sb-doped Ni(50)Mn(38)Ga(12) Heusler alloys
title_sort giant spontaneous exchange bias triggered by crossover of superspin glass in sb-doped ni(50)mn(38)ga(12) heusler alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4967862/
https://www.ncbi.nlm.nih.gov/pubmed/27478090
http://dx.doi.org/10.1038/srep30801
work_keys_str_mv AT tianfanghua giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT caokaiyan giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT zhangyin giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT zengyuyang giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT zhangrui giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT changtieyan giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT zhouchao giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT xuminwei giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT songxiaoping giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys
AT yangsen giantspontaneousexchangebiastriggeredbycrossoverofsuperspinglassinsbdopedni50mn38ga12heusleralloys

Ejemplares similares