Time-resolved reversal of spin-transfer switching in a nanomagnet

被引：432
作者：
Koch, RH
Katine, JA
Sun, JZ
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
[2] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 08期
关键词：
D O I：
10.1103/PhysRevLett.92.088302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Time-resolved measurements of spin-transfer-induced (STI) magnetization reversal were made in current-perpendicular spin-valve nanomagnetic junctions subject to a pulsed current bias. These results can be understood within the framework of a Landau-Lifshitz-Gilbert equation that includes STI corrections and a Langevin random field for finite temperature. Comparison of these measurements with model calculations demonstrates that spin-transfer induced excitation is responsible for the observed magnetic reversal in these samples.
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页数：4
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