Nucleation of magnetization reversal in individual nanosized nickel wires

被引：358
|
作者：
Wernsdorfer, W
Doudin, B
Mailly, D
Hasselbach, K
Benoit, A
Meier, J
Ansermet, JP
Barbara, B
机构：
[1] LAB MAGNET LOUIS NEEL,CNRS,F-38043 GRENOBLE 9,FRANCE
[2] ECOLE POLYTECH FED LAUSANNE,INST PHYS EXPT,CH-1015 LAUSANNE,SWITZERLAND
[3] CNRS,MICROSTRUCT & MICROELECT LAB,F-92220 BAGNEUX,FRANCE
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 09期
关键词：
D O I：
10.1103/PhysRevLett.77.1873
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The switching of the magnetization of single Ni wires with diameters 40-100 nm was measured at temperatures between 0.13 and 6 K. The angular dependence of the switching field was studied for several wire diameters. Repetitive measurements allow us to obtain histograms of the switching field values. For the smallest diameters, the measurements of the probability of reversal revealed a thermally activated switching following an Arrhenius law with an activation volume much smaller than the volume of the wire.
引用
收藏
页码：1873 / 1876
页数：4
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