DOMAIN-WALLS IN ULTRATHIN FERROMAGNETIC-FILMS - VELOCITY AND FRACTAL DIMENSION

被引：42
|
作者：
KIRILYUK, A
FERRE, J
RENARD, D
机构：
[1] UNIV PARIS 11,CNRS,PHYS SOLIDES LAB,F-91405 ORSAY,FRANCE
[2] UNIV PARIS 11,CNRS,INST OPT THEOR & APPL,F-91405 ORSAY,FRANCE
来源：
EUROPHYSICS LETTERS | 1993年 / 24卷 / 05期
关键词：
D O I：
10.1209/0295-5075/24/5/014
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the first measurements of the domain wall (DW) velocity at magnetization reversal as a function of the applied magnetic field in ultrathin ferromagnetic Au/Co/Au films with perpendicular anisotropy. The Barkhausen volumes as well as Gilbert damping parameters are derived. The limit of the DW velocity is reached in high field. The change in fractal dimension of the domain wall with field is correlated to the crossover between thermally activated and viscous processes driving the wall motion.
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页码：403 / 408
页数：6
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