Monte Carlo study of the magnetic properties and magnetocaloric effect of an AFM/FM BiFeO3/Co bilayer

被引：27
作者：
Chang, Chun-lu [1 ]
Wang, Wei [1 ]
Ma, He [1 ]
Huang, Han [1 ]
Liu, Jin-cheng [2 ]
Geng, Rui-ze [2 ]
机构：
[1] Shenyang Univ Technol, Sch Sci, Shenyang 110870, Peoples R China
[2] Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2021年 / 73卷 / 09期
关键词：
BiFeO3; Co bilayer; magnetization; critical temperature; entropy change; hysteresis loops; Monte Carlo simulation; THERMODYNAMIC PROPERTIES; DIELECTRIC-PROPERTIES; THIN-FILMS; SIMULATION; FABRICATION; NANOISLAND; COMPOSITE;
D O I：
10.1088/1572-9494/ac06bc
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetic properties and magnetocaloric effect of an antiferromagnetic/ferromagnetic (AFM/FM) BiFeO3/Co bilayer with mixed-spin (5/2, 3/2) have been studied based on Monte Carlo simulation. The magnetization, susceptibility, and critical temperature are investigated under various exchange couplings and an external magnetic field. In particular, the influence of exchange couplings and an external magnetic field on the magnetic entropy change, adiabatic temperature change, and the relative cooling power (RCP) are studied. The simulation results indicated that the decrease of the exchange coupling and the increase of external magnetic fields can cause an increase of magnetic entropy change, adiabatic temperature change, and RCP. In addition, the hysteresis loops of the system are presented for different exchange couplings and temperatures.
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页数：12
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