Dynamic depinning phase transition in magnetic thin film with anisotropy

The dynamic pinning effects induced by quenched disorder are significant in manipulating the domain-wall motion in nano-magnetic materials. Through numerical simulations of the nonstationary domain-wall dynamics with the Landau-Lifshitz-Gilbert equation, we confidently detect a dynamic depinning pha...

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Bibliographic Details
Published in:New journal of physics 2018-02, Vol.20 (2), p.23027
Main Authors: Xiong, L, Zheng, B, Jin, M H, Wang, L, Zhou, N J
Format: Article
Language:English
Subjects:
Anisotropy
Computer simulation
Domain walls
dynamic critical phenomena
Landau-Lifshitz-Gilbert equation
Magnetic domains
Magnetic materials
Magnetic thin films
magnetism
Phase transitions
Physics
Thin films
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Summary:The dynamic pinning effects induced by quenched disorder are significant in manipulating the domain-wall motion in nano-magnetic materials. Through numerical simulations of the nonstationary domain-wall dynamics with the Landau-Lifshitz-Gilbert equation, we confidently detect a dynamic depinning phase transition in a magnetic thin film with anisotropy, which is of second order. The transition field, static and dynamic exponents are accurately determined, based on the dynamic scaling behavior far from stationary.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/aaaa27