Author:
Ota Shinya,Van Thach Pham,Awano Hiroyuki,Ando Akira,Toyoki Kentaro,Kotani Yoshinori,Nakamura Tetsuya,Koyama Tomohiro,Chiba Daichi
Abstract
AbstractThis 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.
Funder
Japan Society for the Promotion of Science
Spintronics Research Network of Japan
Murata Manufacturing Co., Ltd.
Publisher
Springer Science and Business Media LLC
Cited by
7 articles.
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