Hysteresis Magnetoresistance and Micromagnetic Modeling of Ni Microbelts
Citation:
Zhi-Min Liao, Yi Lu, Hong-Zhou Zhang and Da-Peng Yu, Hysteresis Magnetoresistance and Micromagnetic Modeling of Ni Microbelts, Journal of Magnetism and Magnetic Materials, 322, 15, 2010, 2231 - 2234Abstract:
Magnetization reversal process in a single nickel microbelt is investigated by measuring magnetoresistance (MR). A hysteresis MR curve is observed, which consists of a reversible bell-shaped curve under high magnetic field and an irreversible discontinuity under low magnetic field. A micromagnetic simulation is performed for understanding the underlying physics behind the MR curve. The hysteresis is ascribed to the competition of exchange energy and Zeeman energy, and the irreversible discontinuity is attributed to the formation of domain walls and vortices.
Sponsor
Grant Number
National Science Foundation (NSF)
Author's Homepage:
http://people.tcd.ie/hozhangDescription:
PUBLISHED
Author: ZHANG, HONGZHOU
Type of material:
Journal ArticleCollections
Series/Report no:
Journal of Magnetism and Magnetic Materials322
15
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Full text availableKeywords:
Nanostructures, MagnetoresistanceMetadata
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