Magnetization reversal and magnetic anisotropy in Co network nanostructures

Autor:	B.-Ch. Choi, W. Zhang, D.G. Hasko, Atsufumi Hirohata, Yongbing Xu, C.C. Yao, H. T. Leung, Wooyoung Lee, J. A. C. Bland
Rok vydání:	1999
Předmět:	Physics Condensed Matter::Materials Science Magnetic anisotropy Magnetization Condensed matter physics Ferromagnetism Demagnetizing field Electrical and Electronic Engineering Coercivity Anisotropy Magnetocrystalline anisotropy Micromagnetics Electronic Optical and Magnetic Materials
Zdroj:	IEEE Transactions on Magnetics. 35:3475-3477
ISSN:	0018-9464 1941-0069
DOI:	10.1109/20.800562
Popis:	The magnetization reversal and magnetic anisotropy in Co network structures have been studied using magneto-optic Kerr effect (MOKE). An enhancement of the coercivity is observed in the network structures and is attributed to the pinning of domain walls by the hole edges in the vicinity of which the demagnetizing field spatially varies. We find that the magnetization reversal process is dominated by the intrinsic uniaxial anisotropy (2K/sub u//M/sub s//spl ap/200 Oe) in spite of the shape anisotropy induced by the hole edges. The influence of the cross-junction on the competition between the intrinsic uniaxial anisotropy and the induced shape anisotropy is discussed using micromagnetic simulations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c9f489b1cae724917a907355ec7450a https://doi.org/10.1109/20.800562 Zobrazit plný text záznamu