Determination method for magnetic momentum compensation temperature of ferrimagnets by extrapolating from narrow temperature range

Author:

Chang Jun-Young12,Jeong Yun-Chae13,Lee Ah-Yeon4ORCID,Choi Yeon Suk4ORCID,Park Seung-Young4ORCID,Min Byoung-Chul1ORCID,Je Soong-Geun3ORCID,Choe Sug-Bong2ORCID,Kim Duck-Ho1ORCID

Affiliation:

1. Center for Spintronics, Korea Institute of Science and Technology (KIST) 1 , Seoul 02792, Republic of Korea

2. Department of Physics and Astronomy, Seoul National University 2 , Seoul 08826, Republic of Korea

3. Department of Physics, Chonnam National University 3 , Gwangju 61186, Republic of Korea

4. Division of Scientific Instrumentation and Management, Korea Basic Science Institute (KBSI) 4 , Daejeon 34133, Republic of Korea

Abstract

We propose here an experimental method to determine the magnetization compensation temperature of ferrimagnets. Our method utilizes the first-order derivative of the spontaneous net magnetization with respect to the temperature and then analyzes the results within the context of the Bloch's law of ferrimagnetic materials. This method enables us to extrapolate the compensation temperatures, even when they exceed the measurement limit. Consequently, a wide range of compensation temperatures can be determined using a single experimental setup. The present method provides a versatile tool for analyzing huge compensation temperature in the emerging field of ferrimagnetic and antiferromagnetic spintronics.

Funder

National Research Foundation of Korea

Korea Institute of Science and Technology

Samsung Science and Technology Foundation

Korea Basic Science Institute

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

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