Temperature-dependent anisotropy variation in quasi-two-dimensional ferromagnetic Cr5Te8-Reference-Cited by-同舟云学术

Temperature-dependent anisotropy variation in quasi-two-dimensional ferromagnetic Cr5Te8

Published:2024-04-22 Issue:17 Volume:124 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Wang Aina¹²^ORCID,Rahman Azizur²^ORCID,Du Zan¹²^ORCID,Liu Wei³^ORCID,Li Jingxin¹⁴^ORCID,Fan Jiyu⁵^ORCID,Ma Chunlan⁶^ORCID,Ge Min⁷^ORCID,Pi Li¹⁴⁷,Zhang Yuheng¹⁴⁷,Zhang Lei¹⁴^ORCID

Affiliation:

1. Anhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences 1 , Hefei 230031, China

2. University of Science and Technology of China 2 , Hefei 230026, China

3. Institutes of Physical Science and Information Technology, Anhui University 3 , Hefei 230601, China

4. The High Magnetic Field Laboratory of Anhui Province 4 , Hefei 230031, China

5. Department of Applied Physics, Nanjing University of Aeronautics and Astronautics 5 , Nanjing 210016, China

6. Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology 6 , Suzhou 215009, China

7. Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China 7 , Hefei 230026, China

Abstract

The quasi-two-dimensional ferromagnet Cr5Te8 is a promising material for spintronic devices due to its near-room-temperature Curie temperature (TC), strong magnetic anisotropy, and easily controllable properties. In this study, the anisotropic magnetization of trigonal (T-) Cr5Te8 single crystals is investigated. Our magnetization study reveals that a ferromagnetic transition occurs when the magnetic field is aligned parallel to the c-axis (H//c), while an antiferromagnetic transition appears for H//ab, with a strong perpendicular anisotropy in the ground state. However, electron spin resonance (ESR) spectroscopy indicates that the direction of the easy-axis changes from the c-axis to the ab-plane at TV∼ 190 K as the temperature increases. Furthermore, angle-dependent ESR spectra demonstrate a characteristic of two-dimensional magnetism in the bulk Cr5Te8 single crystal. It is suggested that the temperature-dependent variation in anisotropy is caused by changes in lattice structure through the tuning of the dominant direct-exchange between the intralayers and the super-exchange within the interlayers. The temperature- and field-dependent microwave responses of T-Cr5Te8 are advantageous for the application of this material as a microwave-based spintronic device.

Funder

National Natural Science Foundation of China

Alliance of International Science Organizations

Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures

Publisher

AIP Publishing

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0202667/19893563/172401_1_5.0202667.pdf

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