Incoherent Domain Configuration Along Wire Width in Permalloy Nanowires

Title
Incoherent Domain Configuration Along Wire Width in Permalloy Nanowires
Authors
문경웅이재철정명화신경호최석봉
Keywords
Domain configuration; magnetization reversal; nanowire; permalloy
Issue Date
2009-06
Publisher
IEEE transactions on magnetics
Citation
VOL 45, NO 6, 2485-2487
Abstract
Magnetization reversal in ferromagnetic Permalloy nanowires is experimentally investigated by measurement of the anisotropic magnetoresistance (AMR). Two distinct regimes of the magnetization reversal are observed with respect to the angle of the external magnetic field. For the regime of large angles, the AMR curves exhibit two distinct jumps, evidencing the existence of an intermediate transient state. The intermediate state is in the form of an incoherent magnetization configuration consisting of three domain structures with two Néel walls, due to the inhomogeneous shape anisotropy distribution, as confirmed by a micromagnetic prediction.
URI
http://pubs.kist.re.kr/handle/201004/36371
ISSN
0018-9464
Appears in Collections:
KIST Publication > Article
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