Thermal effects on domain wall depinning from a single notch

被引：53
作者：
Martinez, E.
Lopez-Diaz, L.
Alejos, O.
Torres, L.
Tristan, C.
机构：
[1] Univ Burgos, E-09001 Burgos, Spain
[2] Univ Salamanca, E-37008 Salamanca, Spain
[3] Univ Valladolid, E-47071 Valladolid, Spain
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.98.267202
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The statistical behavior of the domain wall depinning from a notch placed in a thin ferromagnetic wire is studied by means of a stochastic one-dimensional model which considers the wall as a rigid object inside a parabolic potential at room temperature. This analysis reveals the key role of thermal fluctuations on the current and field-induced domain wall depinning, and it allows for direct comparison with experiments in order to gain information on the nonadiabaticity degree of the spin torque.
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页数：4
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