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Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation
In this work, we present the results of the magnetic, critical, and magnetocaloric properties of the rhombohedral-structured La(0.55)Bi(0.05)Sr(0.4)CoO(3) cobaltite. Based on the modified Arrott plot, Kouvel–Fisher, and critical isotherm analyses, we obtained the values of critical exponents (β, γ,...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9069927/ https://www.ncbi.nlm.nih.gov/pubmed/35528658 http://dx.doi.org/10.1039/c9ra04141a |
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author | Saadaoui, F. M. Nofal, Muaffaq M'nassri, R. Koubaa, M. Chniba-Boudjada, N. Cheikhrouhou, A. |
author_facet | Saadaoui, F. M. Nofal, Muaffaq M'nassri, R. Koubaa, M. Chniba-Boudjada, N. Cheikhrouhou, A. |
author_sort | Saadaoui, F. |
collection | PubMed |
description | In this work, we present the results of the magnetic, critical, and magnetocaloric properties of the rhombohedral-structured La(0.55)Bi(0.05)Sr(0.4)CoO(3) cobaltite. Based on the modified Arrott plot, Kouvel–Fisher, and critical isotherm analyses, we obtained the values of critical exponents (β, γ, and δ) as well as Curie temperature (T(C)) for the investigated compound. These components were consistent with their corresponding values and they were validated by the Widom scaling law and scaling theory. The obtained critical exponents were close to the theoretical prediction of the mean-field model values, revealing the characteristic of long-range ferromagnetic interactions. The magnetic entropy, heat capacity, and local exponent n(T, μ(0)H) of the La(0.55)Bi(0.05)Sr(0.4)CoO(3) compound collapsed to a single universal curve, confirming its universal behaviour. The estimated spontaneous magnetization value extracted through the analysis of the magnetic entropy change was consistent with that deduced through the classical extrapolation of the Arrott curves. Thus, the magnetic entropy change is a valid and useful approach to estimate the spontaneous magnetization of La(0.55)Bi(0.05)Sr(0.4)CoO(3). |
format | Online Article Text |
id | pubmed-9069927 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90699272022-05-05 Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation Saadaoui, F. M. Nofal, Muaffaq M'nassri, R. Koubaa, M. Chniba-Boudjada, N. Cheikhrouhou, A. RSC Adv Chemistry In this work, we present the results of the magnetic, critical, and magnetocaloric properties of the rhombohedral-structured La(0.55)Bi(0.05)Sr(0.4)CoO(3) cobaltite. Based on the modified Arrott plot, Kouvel–Fisher, and critical isotherm analyses, we obtained the values of critical exponents (β, γ, and δ) as well as Curie temperature (T(C)) for the investigated compound. These components were consistent with their corresponding values and they were validated by the Widom scaling law and scaling theory. The obtained critical exponents were close to the theoretical prediction of the mean-field model values, revealing the characteristic of long-range ferromagnetic interactions. The magnetic entropy, heat capacity, and local exponent n(T, μ(0)H) of the La(0.55)Bi(0.05)Sr(0.4)CoO(3) compound collapsed to a single universal curve, confirming its universal behaviour. The estimated spontaneous magnetization value extracted through the analysis of the magnetic entropy change was consistent with that deduced through the classical extrapolation of the Arrott curves. Thus, the magnetic entropy change is a valid and useful approach to estimate the spontaneous magnetization of La(0.55)Bi(0.05)Sr(0.4)CoO(3). The Royal Society of Chemistry 2019-08-12 /pmc/articles/PMC9069927/ /pubmed/35528658 http://dx.doi.org/10.1039/c9ra04141a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Saadaoui, F. M. Nofal, Muaffaq M'nassri, R. Koubaa, M. Chniba-Boudjada, N. Cheikhrouhou, A. Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title | Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title_full | Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title_fullStr | Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title_full_unstemmed | Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title_short | Magnetic and magnetocaloric properties of La(0.55)Bi(0.05)Sr(0.4)CoO(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
title_sort | magnetic and magnetocaloric properties of la(0.55)bi(0.05)sr(0.4)coo(3) and their implementation in critical behaviour study and spontaneous magnetization estimation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9069927/ https://www.ncbi.nlm.nih.gov/pubmed/35528658 http://dx.doi.org/10.1039/c9ra04141a |
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