Magnetic bistability of Co nanodots

被引：99

作者：

Ding, HF

Schmid, AK

Li, DQ

Guslienko, KY

Bader, SD

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.94.157202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Size-dependent magnetic single-domain versus vortex state stability of Co/Ru(0001) nanodots is explored with spin-polarized low-energy electron microscopy, analytical modeling, and micromagnetic simulations. We show that both single-domain and vortex states can be stabilized in a broad region near the phase boundary. The calculated width of the bistability region and temperature dependent heights of the energy barriers between both states agree well with our experimental findings.

引用

页数：4

共 21 条

[1]

Aharoni A., 1996, Introduction to the Theory of Ferromagnetism

[2] THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE [J].