Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films

This study investigates the effect of strain on the compensation temperature of ferrimagnetic Tb–Fe films formed on a flexible substrate. The compensation temperature is determined by the anomalous Hall measurement, and an application of 1.2% tensile strain reduces the compensation temperature by 12...

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Autores principales: Ota, Shinya, Van Thach, Pham, Awano, Hiroyuki, Ando, Akira, Toyoki, Kentaro, Kotani, Yoshinori, Nakamura, Tetsuya, Koyama, Tomohiro, Chiba, Daichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7973561/
https://www.ncbi.nlm.nih.gov/pubmed/33737577
http://dx.doi.org/10.1038/s41598-021-85642-3
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author Ota, Shinya
Van Thach, Pham
Awano, Hiroyuki
Ando, Akira
Toyoki, Kentaro
Kotani, Yoshinori
Nakamura, Tetsuya
Koyama, Tomohiro
Chiba, Daichi
author_facet Ota, Shinya
Van Thach, Pham
Awano, Hiroyuki
Ando, Akira
Toyoki, Kentaro
Kotani, Yoshinori
Nakamura, Tetsuya
Koyama, Tomohiro
Chiba, Daichi
author_sort Ota, Shinya
collection PubMed
description This study investigates the effect of strain on the compensation temperature of ferrimagnetic Tb–Fe films formed on a flexible substrate. The compensation temperature is determined by the anomalous Hall measurement, and an application of 1.2% tensile strain reduces the compensation temperature by 12 K. X-ray magnetic circular dichroism reveals that approximately 5% of Fe magnetic moment and approximately 1% of Tb magnetic moment are reduced by an application of 0.9% tensile strain at the room temperature. To understand the greater reduction in Fe magnetization compared with that in Tb and the compensation temperature reduction simultaneously, a model applying molecular field theory is analyzed. Changes in three types of exchange coupling between Fe and Tb atoms are speculated to be caused by the strain.
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spelling pubmed-79735612021-03-19 Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films Ota, Shinya Van Thach, Pham Awano, Hiroyuki Ando, Akira Toyoki, Kentaro Kotani, Yoshinori Nakamura, Tetsuya Koyama, Tomohiro Chiba, Daichi Sci Rep Article This study investigates the effect of strain on the compensation temperature of ferrimagnetic Tb–Fe films formed on a flexible substrate. The compensation temperature is determined by the anomalous Hall measurement, and an application of 1.2% tensile strain reduces the compensation temperature by 12 K. X-ray magnetic circular dichroism reveals that approximately 5% of Fe magnetic moment and approximately 1% of Tb magnetic moment are reduced by an application of 0.9% tensile strain at the room temperature. To understand the greater reduction in Fe magnetization compared with that in Tb and the compensation temperature reduction simultaneously, a model applying molecular field theory is analyzed. Changes in three types of exchange coupling between Fe and Tb atoms are speculated to be caused by the strain. Nature Publishing Group UK 2021-03-18 /pmc/articles/PMC7973561/ /pubmed/33737577 http://dx.doi.org/10.1038/s41598-021-85642-3 Text en © The Author(s) 2021 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ota, Shinya
Van Thach, Pham
Awano, Hiroyuki
Ando, Akira
Toyoki, Kentaro
Kotani, Yoshinori
Nakamura, Tetsuya
Koyama, Tomohiro
Chiba, Daichi
Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title_full Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title_fullStr Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title_full_unstemmed Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title_short Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
title_sort strain-induced modulation of temperature characteristics in ferrimagnetic tb–fe films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7973561/
https://www.ncbi.nlm.nih.gov/pubmed/33737577
http://dx.doi.org/10.1038/s41598-021-85642-3
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