Universality Classes of Magnetic Domain Wall Motion

Title
Universality Classes of Magnetic Domain Wall Motion
Authors
이재철김갑진문경웅윤상준김기홍이강수신경호이현우최석봉
Issue Date
2011-08
Publisher
Physical review letters
Citation
VOL 107, NO 6, 067201-1-067201-5
Abstract
We examine magnetic domain wall motion in metallic nanowires Pt-Co-Pt. Regardless of whether the motion is driven by either magnetic fields or current, all experimental data fall onto a single universal curve in the creep regime, implying that both the motions belong to the same universality class. This result is in contrast to the report on magnetic semiconductor (Ga,Mn)As exhibiting two different universality classes. Our finding signals the possible existence of yet other universality classes which go beyond the present understanding of the statistical mechanics of driven interfaces.
URI
http://pubs.kist.re.kr/handle/201004/40815
ISSN
0031-9007
Appears in Collections:
KIST Publication > Article
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