Poisson's process in the propagation of magnetic domain wall in a perpendicularly magnetized film

被引：0

作者：

Xing, T. ^{[1
,2
]}

Vernier, N. ^{[2
,3
]}

Zhang, X. Y. ^{[1
]}

Zhang, Y. G.

Zhao, W. S. ^{[1
]}

机构：

[1] Beihang Univ, Fert Beijing Inst, Sch Integrated Circuit Sci & Engn, MIIT Key Lab Spintron, Beijing 100191, Peoples R China

[2] Univ Paris Saclay, Ctr Nanosci & Nanotechnol, CNRS, F-91120 Palaiseau, France

[3] Univ Paris Saclay, Lab Lumiere Matiere & Interfaces, F-91405 Orsay, France

来源：

PHYSICAL REVIEW B | 2023年 / 108卷 / 08期

关键词：

CREEP;

D O I：

10.1103/PhysRevB.108.L081113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present here a statistical study of the transit time required for a magnetic domain wall to go through a small laser spot focused on two-dimensional magnetic thin film. The domain wall velocity deduced this way is in good agreement with the other ways used to measure this parameter, but the main fact is that the transit time is not a reproducible parameter; we have observed a quite large distribution of this parameter. This distribution can be explained assuming the movement to occur through jumps, whose probabilities are given by Poisson's process. The fitting of this distribution has enabled us to get the required number of jumps to reverse the magnetization of the small area under the laser spot. This important parameter should lead to a better understanding of the creep regime.

引用

页数：4