Magnetic Properties and Exchange Bias Effect of Cu and Cr doped Sm2Co17 Alloy Film

National Conference on Theory of Magnetism

Dong, Dashun^1 ; Fang, Qingqing^1 ; Wang, Wenwen^1 ; Yang, Jinjin^1

School of Phys. and Mater. Sci., Anhui University, Hefei

230039, China^1

关键词: Antiferromagnetic phase;    Cr incorporations;    Critical value;    Exchange bias;    Exchange bias effects;    External magnetic field;    Ferromagnetic phase;    Zero-field-cooled;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/827/1/012018/pdf
DOI  :  10.1088/1742-6596/827/1/012018

来源: IOP

【 摘 要 】

Cu and Cr-doped Sm2Co17films were synthesized using pulsed laser deposition method with the substrate of Si(100), and our results show that Cu and Cr incorporation can reduce the grain size and increase the coercivity of Cu and Cr-doped Sm2Co17films. Furthermore, incorporations of Cu and Cr will introduce a positive effect for the exchange bias of Cu and Cr-doped Sm2Co17films. The magnetic measurement of external magnetic field and zero-field-cooled (FC-ZFC) under the temperature ranging from 10K to 300 K prove that the critical value of FM-AFM transform is ∼80 K in the Cu and Cr-doped Sm2Co17films, which showed that the exchange bias origins from the coupling competition between ferromagnetic phase and antiferromagnetic phase.