Micromagnetic behavior of electrodeposited cylinder arrays

被引：236

作者：

Ross, CA ^{[1
]}

Hwang, M

Shima, M

Cheng, JY

Farhoud, M

Savas, TA

Smith, HI

Schwarzacher, W

Ross, FM

Redjdal, M

Humphrey, FB

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[3] MIT, Dept Phys, Cambridge, MA 02139 USA

[4] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[5] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

[6] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.65.144417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Arrays of cylindrical magnetic particles have been made using interference lithography combined with electrodeposition. The cylinders are made from Ni, Co, CoP, or CoNi, with diameters of 57-180 nm, aspect ratios of 0.4-3, and array periods of 100-200 nm. The remanent states of the cylinders correspond to single-domain "flower" states or to magnetization vortices depending on the particle size and aspect ratio. Experimental data are in good agreement with a magnetic-state map calculated using a three-dimensional micromagnetic model, which shows the remanent state as a function of particle size and aspect ratio. The interactions between the particles, and their switching-field distribution, have been quantified.

引用

页码：1 / 8

页数：8

共 48 条

[1] Magnetic properties and interactions of single-domain nanomagnets in a periodic array [J].