Domain Patterns and Magnetization Reversal Behaviors in Oxide/Co/Pt Films

Title
Domain Patterns and Magnetization Reversal Behaviors in Oxide/Co/Pt Films
Authors
이재철Kang-Soo LeeCheong-Gu ChoKyoung-Woong Moon신경호Sug-Bong Choe
Keywords
Domain pattern; oxide/Co interface; perpendicular magnetic anisotropy
Issue Date
2010-06
Publisher
IEEE transactions on magnetics
Citation
VOL 46, NO 6, 2009-2011
Abstract
The domain patterns and magnetization reversal behaviors in oxide/Co/Pt films are examined with varying the thickness of Co layer from 0.7 nm to 2.0 nm. The films are grown on Al2O3, MgO and SiO2 layers. All the films exhibit strong perpendicular magnetic anisotropy, but the anisotropy decreases with increasing Co layer thickness for all the oxide layers. The decrement rate is different for different oxide layers. The domain patterns show the transition between the wall-motion and dendrite-growth dominant behaviors, and the critical thickness is estimated to be about 1.0 nm irrespective of the oxide layers. We summarize the magnetic properties of oxide/Co/Pt films with respect to the Co-thickness and various oxide layers.
URI
http://pubs.kist.re.kr/handle/201004/38223
ISSN
0018-9464
Appears in Collections:
KIST Publication > Article
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