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

Abstract 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 temperat...

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Autores principales:	Shinya Ota, Pham Van Thach, Hiroyuki Awano, Akira Ando, Kentaro Toyoki, Yoshinori Kotani, Tetsuya Nakamura, Tomohiro Koyama, Daichi Chiba
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2f7eabcfad3a4ca78b02c93a0f40ba26
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spelling	oai:doaj.org-article:2f7eabcfad3a4ca78b02c93a0f40ba262021-12-02T13:17:55ZStrain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films10.1038/s41598-021-85642-32045-2322https://doaj.org/article/2f7eabcfad3a4ca78b02c93a0f40ba262021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85642-3https://doaj.org/toc/2045-2322Abstract 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.Shinya OtaPham Van ThachHiroyuki AwanoAkira AndoKentaro ToyokiYoshinori KotaniTetsuya NakamuraTomohiro KoyamaDaichi ChibaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shinya Ota Pham Van Thach Hiroyuki Awano Akira Ando Kentaro Toyoki Yoshinori Kotani Tetsuya Nakamura Tomohiro Koyama Daichi Chiba Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films
description	Abstract 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.
format	article
author	Shinya Ota Pham Van Thach Hiroyuki Awano Akira Ando Kentaro Toyoki Yoshinori Kotani Tetsuya Nakamura Tomohiro Koyama Daichi Chiba
author_facet	Shinya Ota Pham Van Thach Hiroyuki Awano Akira Ando Kentaro Toyoki Yoshinori Kotani Tetsuya Nakamura Tomohiro Koyama Daichi Chiba
author_sort	Shinya Ota
title	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_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_sort	strain-induced modulation of temperature characteristics in ferrimagnetic tb–fe films
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2f7eabcfad3a4ca78b02c93a0f40ba26
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Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films

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