Magnetization reversal in single-layer and exchange-biased elliptical-ring arrays -: art. no. 10K113

被引：25

作者：

Jung, W ^{[1
]}

Castaño, FJ

Morecroft, D

Ross, CA

Menon, R

Smith, HI

机构：

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

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

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期

关键词：

D O I：

10.1063/1.1855461

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Arrays of elliptical rings with long axis of 3 mu m, short axis of 1.8 mu m, and widths of 400 nm and above were fabricated by zone-plate-array lithography and lift-off processing. Hysteresis loops of NiFe elliptical rings with different widths indicate the "vortex" state is more stable for narrower rings. Micromagnetic simulations reveal that the magnetization configurations of wider rings are more complicated than that of narrower ones. Elliptical-ring arrays fabricated from exchange-biased thin film structures display shifted hysteresis loops and the same width dependence of the stability of the vortex state. (c) 2005 American Institute of Physics.

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页数：3

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