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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47433

Title: Magnetization reversal in epitaxial MnAs thin films
Authors: P. K. Wei
E. D. Fraser
C. H. Kim
S. Hegde
H. Zeng
H. Luo
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2008-08
Issue Date: 2018-07-23T01:46:47Z
Publisher: JOURNAL OF APPLIED PHYSICS
Abstract: Abstract: The magnetization reversal process of MnAs epitaxial films grown on semiconductor substrates was investigated by magneto-optical Kerr effect (MOKE) microscopy, magnetic hysteresis, and magnetoresistance measurements. While the stripe patterns with opposite magnetization in the α-phase of MnAs have been observed previously, we have observed domain dynamics on a vastly different length scale. MOKE images revealed domain nucleation and avalanche domain reversal, which are a collective behavior resulting from interactions among a large number of α-phase regions. The observed reversal processes are reflected in the magnetic hysteresis and magnetotransport measurements. These effects are strongly film thickness dependent.
Relation: 104(3)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47433
Appears in Collections:[光電科學研究所] 期刊論文

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