Magnetization reversal in ferromagnetic wires patterned with antiferromagnetic gratings

被引：1

作者：

Sani, S. R. ^{[1
]}

Liu, F. ^{[1
]}

Ross, C. A. ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, 77 Massachusetts Ave,Room 13-4005, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 16期

基金：

美国国家科学基金会; 瑞典研究理事会;

关键词：

EXCHANGE BIAS; NANOSTRUCTURES; ANISOTROPY; FILMS; FIELD; MODEL;

D O I：

10.1063/1.4981389

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic reversal behavior is examined for exchange-biased ferromagnetic/antiferromagnetic nanostructures consisting of an array of 10nm thick Ni80Fe20 stripes with width 200 nm and periodicity 400 nm, underneath an orthogonal array of 10nm thick IrMn stripes with width ranging from 200 nm to 500nm and periodicity from 400nm to 1 mu m. The Ni80Fe20 stripes show a hysteresis loop with one step when the IrMn width and spacing are small. However, upon increasing the IrMn width and spacing, the hysteresis loops showed two steps as the pinned and unpinned sections of the Ni80Fe20 stripes switch at different fields. Micromagnetic modeling reveals the influence of geometry on the reversal behavior. Published by AIP Publishing.

引用

页数：5

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