The investigation of linear relationship between domain wall creep parameters in Co/Pt multilayers

被引：0
|
作者：
Li, Xiaolei [1 ]
Qiao, Huifang [1 ]
Niu, Yabin [1 ]
Gao, Runliang [1 ]
Wu, Huiliang [1 ]
Ye, Yuchen [1 ]
Liu, Qingfang [1 ]
Wang, Jianbo [1 ,2 ]
机构：
[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Minist Educ, Key Lab Special Funct Mat & Struct Design, Lanzhou 730000, Peoples R China
来源：
PHYSICA SCRIPTA | 2023年 / 98卷 / 03期
基金：
中国国家自然科学基金;
关键词：
perpendicular magnetic anisotropy; magnetic domain wall motion; weak pinning; DRIVEN;
D O I：
10.1088/1402-4896/acb512
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this work, we investigate the linear relationship between domain wall creep parameters, and evaluate the effect of material parameters on magnetic domain wall creep in a series of Pt/Co/Pt multilayers with perpendicular magnetic anisotropy. The results for the samples with different magnetic layer thicknesses verify the linear relationship between the domain wall creep parameters, which is because in these samples both domain wall creep parameters are mainly affected by Co layer thickness and both of the domain wall creep parameters are proportional to the Co layer thickness. With the assistance of surface acoustic waves, the domain wall creep parameters also follow the linear relationship. This suggests a relationship between the anisotropy density K and local pinning strength f(pin):f(pin)infinity K-1/8.
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页数：7
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