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Magnetoelectricity coupled exchange bias in BaMnF(4)

Multiferroic BaMnF(4) powder was prepared by hydrothermal method. Hysteretic field dependent magnetization curve at 5 K confirms the weak ferromagnetism aroused from the canted antiferromagnetic spins by magnetoelectric coupling. The blocking temperature of 65 K for exchange bias coincides well with...

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Autores principales: Zhou, Shuang, Wang, Ji, Chang, Xiaofeng, Wang, Shuangbao, Qian, Bin, Han, Zhida, Xu, Qingyu, Du, Jun, Wang, Peng, Dong, Shuai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4680875/
https://www.ncbi.nlm.nih.gov/pubmed/26671575
http://dx.doi.org/10.1038/srep18392
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author Zhou, Shuang
Wang, Ji
Chang, Xiaofeng
Wang, Shuangbao
Qian, Bin
Han, Zhida
Xu, Qingyu
Du, Jun
Wang, Peng
Dong, Shuai
author_facet Zhou, Shuang
Wang, Ji
Chang, Xiaofeng
Wang, Shuangbao
Qian, Bin
Han, Zhida
Xu, Qingyu
Du, Jun
Wang, Peng
Dong, Shuai
author_sort Zhou, Shuang
collection PubMed
description Multiferroic BaMnF(4) powder was prepared by hydrothermal method. Hysteretic field dependent magnetization curve at 5 K confirms the weak ferromagnetism aroused from the canted antiferromagnetic spins by magnetoelectric coupling. The blocking temperature of 65 K for exchange bias coincides well with the peak at 65 K in the zero-field cooled temperature-dependent magnetization curve, which has been assigned to the onset temperature of two-dimensional antiferromagnetism. An upturn kink of exchange field and coercivity with decreasing temperature was observed from 40 K to 20 K, which is consistent with the two-dimensional to three-dimensional antiferromagnetic transition at Néel temperature (~26 K). In contrast to the conventional mechanism of magnetization pinned by interfacial exchange coupling in multiphases, the exchange bias in BaMnF(4) is argued to be a bulk effect in single phase, due to the magnetization pinned by the polarization through magnetoelectric coupling.
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spelling pubmed-46808752015-12-18 Magnetoelectricity coupled exchange bias in BaMnF(4) Zhou, Shuang Wang, Ji Chang, Xiaofeng Wang, Shuangbao Qian, Bin Han, Zhida Xu, Qingyu Du, Jun Wang, Peng Dong, Shuai Sci Rep Article Multiferroic BaMnF(4) powder was prepared by hydrothermal method. Hysteretic field dependent magnetization curve at 5 K confirms the weak ferromagnetism aroused from the canted antiferromagnetic spins by magnetoelectric coupling. The blocking temperature of 65 K for exchange bias coincides well with the peak at 65 K in the zero-field cooled temperature-dependent magnetization curve, which has been assigned to the onset temperature of two-dimensional antiferromagnetism. An upturn kink of exchange field and coercivity with decreasing temperature was observed from 40 K to 20 K, which is consistent with the two-dimensional to three-dimensional antiferromagnetic transition at Néel temperature (~26 K). In contrast to the conventional mechanism of magnetization pinned by interfacial exchange coupling in multiphases, the exchange bias in BaMnF(4) is argued to be a bulk effect in single phase, due to the magnetization pinned by the polarization through magnetoelectric coupling. Nature Publishing Group 2015-12-16 /pmc/articles/PMC4680875/ /pubmed/26671575 http://dx.doi.org/10.1038/srep18392 Text en Copyright © 2015, 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
Zhou, Shuang
Wang, Ji
Chang, Xiaofeng
Wang, Shuangbao
Qian, Bin
Han, Zhida
Xu, Qingyu
Du, Jun
Wang, Peng
Dong, Shuai
Magnetoelectricity coupled exchange bias in BaMnF(4)
title Magnetoelectricity coupled exchange bias in BaMnF(4)
title_full Magnetoelectricity coupled exchange bias in BaMnF(4)
title_fullStr Magnetoelectricity coupled exchange bias in BaMnF(4)
title_full_unstemmed Magnetoelectricity coupled exchange bias in BaMnF(4)
title_short Magnetoelectricity coupled exchange bias in BaMnF(4)
title_sort magnetoelectricity coupled exchange bias in bamnf(4)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4680875/
https://www.ncbi.nlm.nih.gov/pubmed/26671575
http://dx.doi.org/10.1038/srep18392
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