Magnetic configurations in 160-520-nm-diameter ferromagnetic rings -: art. no. 144421

被引：62
作者：
Castaño, FJ
Ross, CA
Eilez, A
Jung, W
Frandsen, C
机构：
[1] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA
[2] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
来源：
PHYSICAL REVIEW B | 2004年 / 69卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.69.144421
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The remanent states and hysteretic behavior of thin-film magnetic rings has been investigated experimentally and by micromagnetic modeling. Rings of diameters 160-520 nm, made from Co using lift-off processing, show three distinct remanent states: a vortex state, an "onion" state with two head-on walls, and a "twisted" state containing a 360degrees wall. The range of stability of these states varies with ring geometry, with smaller width rings showing higher switching fields and greater variability.
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页码：144421 / 1
页数：7
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