Self-organized criticality of domain walls and magnetization curve

研究成果: ジャーナルへの寄稿記事

抄録

We propose a kind of Ginzburg–Landau equation with quenched randomness. There is a pinning-depinning transition in the system when the external magnetic force is changed. The transition is self-organized when the external magnetic field is slowly changed under the demagnetizing effect. The total magnetization increases stepwise and the probability distribution of the increase in the total magnetization approximately obeys a power law. A hysteresis loop is obtained when the external magnetic field is changed reciprocally. In our model, the coercivity in the magnetization curve is expressed as the critical value for the pinning-depinning transition.

元の言語英語
記事番号024006-1
ジャーナルjournal of the physical society of japan
88
発行部数2
DOI
出版物ステータス出版済み - 1 1 2019

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domain wall
magnetization
curves
magnetic fields
coercivity
hysteresis

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Self-organized criticality of domain walls and magnetization curve. / Sakaguchi, Hidetsugu; Zhao, Yue.

:: journal of the physical society of japan, 巻 88, 番号 2, 024006-1, 01.01.2019.

研究成果: ジャーナルへの寄稿記事

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