Role of the stability of charge ordering in exchange bias effect in doped manganites

In this work we have carried out an elaborate study on the magnetic properties and investigated the exchange bias phenomena of some charge-ordered (CO) manganites. The detailed study of Sm(1−x)Ca(x)MnO(3) (x = 0.5, 0.55, 0.6, 0.65, 0.7) compounds shows that Sm(0.4)Ca(0.6)MnO(3), which is the most ro...

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Autores principales: Dasgupta, Papri, Das, Kalipada, Pakhira, Santanu, Mazumdar, Chandan, Mukherjee, S., Poddar, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5468231/
https://www.ncbi.nlm.nih.gov/pubmed/28607448
http://dx.doi.org/10.1038/s41598-017-03451-z
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author Dasgupta, Papri
Das, Kalipada
Pakhira, Santanu
Mazumdar, Chandan
Mukherjee, S.
Mukherjee, S.
Poddar, A.
author_facet Dasgupta, Papri
Das, Kalipada
Pakhira, Santanu
Mazumdar, Chandan
Mukherjee, S.
Mukherjee, S.
Poddar, A.
author_sort Dasgupta, Papri
collection PubMed
description In this work we have carried out an elaborate study on the magnetic properties and investigated the exchange bias phenomena of some charge-ordered (CO) manganites. The detailed study of Sm(1−x)Ca(x)MnO(3) (x = 0.5, 0.55, 0.6, 0.65, 0.7) compounds shows that Sm(0.4)Ca(0.6)MnO(3), which is the most robust charge ordered material studied here, shows significantly large exchange bias field (H(E)) as compared to the other compounds. Our experimental results and analysis indicate that T(CO), which reflects the stability of the charge-ordered state, is one of the key parameters for the exchange bias effect. Similar behaviour is found in other rare-earth analogues, viz., La(1−x)Ca(x)MnO(3) and Pr(1−x)Ca(x)MnO(3) compounds as well. We also found that with increasing stability of CO states in Sm(1−x)Ca(x)MnO(3) compounds, H(E) enhances due to increase in number and reduction in size of ferromagnetic clusters.
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spelling pubmed-54682312017-06-14 Role of the stability of charge ordering in exchange bias effect in doped manganites Dasgupta, Papri Das, Kalipada Pakhira, Santanu Mazumdar, Chandan Mukherjee, S. Mukherjee, S. Poddar, A. Sci Rep Article In this work we have carried out an elaborate study on the magnetic properties and investigated the exchange bias phenomena of some charge-ordered (CO) manganites. The detailed study of Sm(1−x)Ca(x)MnO(3) (x = 0.5, 0.55, 0.6, 0.65, 0.7) compounds shows that Sm(0.4)Ca(0.6)MnO(3), which is the most robust charge ordered material studied here, shows significantly large exchange bias field (H(E)) as compared to the other compounds. Our experimental results and analysis indicate that T(CO), which reflects the stability of the charge-ordered state, is one of the key parameters for the exchange bias effect. Similar behaviour is found in other rare-earth analogues, viz., La(1−x)Ca(x)MnO(3) and Pr(1−x)Ca(x)MnO(3) compounds as well. We also found that with increasing stability of CO states in Sm(1−x)Ca(x)MnO(3) compounds, H(E) enhances due to increase in number and reduction in size of ferromagnetic clusters. Nature Publishing Group UK 2017-06-12 /pmc/articles/PMC5468231/ /pubmed/28607448 http://dx.doi.org/10.1038/s41598-017-03451-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Dasgupta, Papri
Das, Kalipada
Pakhira, Santanu
Mazumdar, Chandan
Mukherjee, S.
Mukherjee, S.
Poddar, A.
Role of the stability of charge ordering in exchange bias effect in doped manganites
title Role of the stability of charge ordering in exchange bias effect in doped manganites
title_full Role of the stability of charge ordering in exchange bias effect in doped manganites
title_fullStr Role of the stability of charge ordering in exchange bias effect in doped manganites
title_full_unstemmed Role of the stability of charge ordering in exchange bias effect in doped manganites
title_short Role of the stability of charge ordering in exchange bias effect in doped manganites
title_sort role of the stability of charge ordering in exchange bias effect in doped manganites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5468231/
https://www.ncbi.nlm.nih.gov/pubmed/28607448
http://dx.doi.org/10.1038/s41598-017-03451-z
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