Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics

Exchange bias effect obtained after zero-field cooling from unmagnetized state usually exhibits a shift of hysteresis loop negative to the direction of the initial magnetic field, known as negative zero-field cooled exchange bias. Here, positive zero-field cooled exchange bias is reported in La(0.5)...

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Autores principales: Shang, Cui, Guo, Shaopu, Wang, Ruilong, Sun, Zhigang, Xiao, Haibo, Xu, Lingfang, Yang, Changping, Xia, Zhengcai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4863367/
https://www.ncbi.nlm.nih.gov/pubmed/27168382
http://dx.doi.org/10.1038/srep25703
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author Shang, Cui
Guo, Shaopu
Wang, Ruilong
Sun, Zhigang
Xiao, Haibo
Xu, Lingfang
Yang, Changping
Xia, Zhengcai
author_facet Shang, Cui
Guo, Shaopu
Wang, Ruilong
Sun, Zhigang
Xiao, Haibo
Xu, Lingfang
Yang, Changping
Xia, Zhengcai
author_sort Shang, Cui
collection PubMed
description Exchange bias effect obtained after zero-field cooling from unmagnetized state usually exhibits a shift of hysteresis loop negative to the direction of the initial magnetic field, known as negative zero-field cooled exchange bias. Here, positive zero-field cooled exchange bias is reported in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics. In addition, a transition from positive to negative exchange bias has been observed with increasing initial magnetization field and measurement temperature. Based on a simple spin bidomain model with variable interface, two type of interfacial spin configuration formed during the initial magnetization process are proposed to interpret the observed phenomenon.
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spelling pubmed-48633672016-05-23 Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics Shang, Cui Guo, Shaopu Wang, Ruilong Sun, Zhigang Xiao, Haibo Xu, Lingfang Yang, Changping Xia, Zhengcai Sci Rep Article Exchange bias effect obtained after zero-field cooling from unmagnetized state usually exhibits a shift of hysteresis loop negative to the direction of the initial magnetic field, known as negative zero-field cooled exchange bias. Here, positive zero-field cooled exchange bias is reported in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics. In addition, a transition from positive to negative exchange bias has been observed with increasing initial magnetization field and measurement temperature. Based on a simple spin bidomain model with variable interface, two type of interfacial spin configuration formed during the initial magnetization process are proposed to interpret the observed phenomenon. Nature Publishing Group 2016-05-11 /pmc/articles/PMC4863367/ /pubmed/27168382 http://dx.doi.org/10.1038/srep25703 Text en Copyright © 2016, Macmillan Publishers Limited 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
Shang, Cui
Guo, Shaopu
Wang, Ruilong
Sun, Zhigang
Xiao, Haibo
Xu, Lingfang
Yang, Changping
Xia, Zhengcai
Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title_full Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title_fullStr Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title_full_unstemmed Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title_short Positive to negative zero-field cooled exchange bias in La(0.5)Sr(0.5)Mn(0.8)Co(0.2)O(3) ceramics
title_sort positive to negative zero-field cooled exchange bias in la(0.5)sr(0.5)mn(0.8)co(0.2)o(3) ceramics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4863367/
https://www.ncbi.nlm.nih.gov/pubmed/27168382
http://dx.doi.org/10.1038/srep25703
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