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.

引用

页数：4

共 18 条

[1]

Albert F. J., 2003, PHYS REV LETT, V89

[2] Modification of the Landau-Lifshitz equation in the presence of a spin-polarized current in colossal- and giant-magnetoresistive materials [J].