Magnetic phase diagram of CrPS4and its exchange interaction in contact with NiFe

Shilei Ding; Yuxuan Peng; Mingzhu Xue; Zhou Liu; Zhongyu Liang; Wenyun Yang; Yunbin Sun; Jianjun Zhao; Changsheng Wang; Shunquan Liu; Jingzhi Han; Jinbo Yang

doi:10.1088/1361-648X/ab9e2d

Magnetic phase diagram of CrPS₄and its exchange interaction in contact with NiFe

J Phys Condens Matter. 2020 Jul 3;32(40). doi: 10.1088/1361-648X/ab9e2d.

Authors

Shilei Ding¹, Yuxuan Peng², Mingzhu Xue¹, Zhou Liu¹, Zhongyu Liang¹, Wenyun Yang¹, Yunbin Sun², Jianjun Zhao², Changsheng Wang¹, Shunquan Liu¹, Jingzhi Han¹, Jinbo Yang^{1

3

4}

Affiliations

¹ State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, People's Republic of China.
² Key Laboratory of Magnetism and Magnetic Materials at Universities of Inner Mongolia Autonomous Region, Department of Physics, Baotou Normal University, Baotou 014030, People's Republic of China.
³ Collaborative Innovation Center of Quantum Matter, Beijing, 100871, People's Republic of China.
⁴ Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing 100871, People's Republic of China.

PMID: 32554867
DOI: 10.1088/1361-648X/ab9e2d

Abstract

The magnetic phase diagram of the two-dimensional van der Waals magnet CrPS₄and the exchange bias effect of CrPS₄in contact with NiFe film have been investigated. Based on the magnetic measurements, we figure out the relatively low spin-flop field and spin-flip field for CrPS₄, both of the spin transition phenomena are strongly affected by the temperature. The perpendicular exchange bias effect is studied in CrPS₄single-crystal flake covered with 5 nm NiFe. Meanwhile, the variation of the cooling field has a great influence on the exchange bias field and coercivity, which is mainly attributed to the competition between the Zeeman energy and the exchange coupling at the interface as well as the formation of the multi-domain state.

Keywords: exchange bias effect; magnetic phase diagram; spin-flip transition; spin-flop transition.