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Magnetization configuration and switching behavior of submicron NiFe elements: Pac-man shape

2003; American Institute of Physics; Volume: 83; Issue: 2 Linguagem: Inglês

10.1063/1.1592002

1520-8842

M. H. Park, Yang‐Ki Hong, S. H. Gee, D. W. Erickson, B. C. Choi,

Metallic Glasses and Amorphous Alloys

Two types of submicron permalloy element, namely Pac-man, were investigated by a magnetic force microscope for magnetization configuration and switching behaviors. Two distinct domain configurations, bidomain for Pac-man type I and single domain for Pac-man type II, were observed in arrays of Pac-man elements. The domain configuration depends on the slot angle for the Pac-man type I, but is independent of the slot angle for the Pac-man type II. Array of Pac-man elements with a slot angle of 180° shows the highest switching field and the narrowest switching field distribution, as compared to rectangular and hexagonal elements of the same overall dimensions.