Universal classes of magnetic-field- and electric-current-induced magnetic domain-wall dynamics in one and two dimensional regimes

Title
Universal classes of magnetic-field- and electric-current-induced magnetic domain-wall dynamics in one and two dimensional regimes
Authors
김갑진Jae-Chul Lee신경호이현우최석봉
Keywords
Magnetic domain wall; Dimensional transition; Creep; Universality; Spin transfer torque
Issue Date
2013-01
Publisher
Current applied physics
Citation
VOL 13, NO 1, 228-236
Abstract
Magnetic domain-wall (DW), interface between different magnetic domains, has received great attention due to its opportunities toward memory and logic devices as well as its abundant physical properties as a driven interface. Since recent advances of fabrication techniques allow us to scale down the devices, we are facing lower dimensional properties that should be elucidated undoubtedly. Here, we review recent progresses on DWdynamics in ferromagnetic nanowires and our recent experimental observation on the dimensionality transition of the DW dynamics driven by magnetic field and/or current. Our results show that the DW dynamics shows a transition from two to one dimensional behavior as the wire width decreases. In addition, we also demonstrate that the magnetic-field- and electric-current-driven DW dynamics in metallic ferromagnetic nanowires belong to the same universal class.
URI
http://pubs.kist.re.kr/handle/201004/43921
ISSN
15671739
Appears in Collections:
KIST Publication > Article
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