Dynamics of Barkhausen jumps in disordered ferromagnets

Guangping Zheng; Mo Li; Jinxiu Zhang

doi:10.1063/1.1488249

Dynamics of Barkhausen jumps in disordered ferromagnets

Guangping Zheng, Mo Li, Jinxiu Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

6 Citations (Scopus)

Abstract

Evolution of Barkhausen jumps during the magnetization reversal process in disordered magnetic material is investigated. Based on the magnetoelastic effect (ΔE effect), we investigated the dynamics of Barkhausen jumps through an internal friction measurement of amorphous Fe-B-Mo ribbons. The ΔE caused by the Barkhausen jump is found to have a power-law scaling relation with the driving rate of magnetic field. Using numerical simulation, dynamics of Barkhausen avalanches in a realistic spin-lattice model for a disordered ferromagnet is analyzed. The dynamic scaling and inhomogeneous behavior observed in both experiments and theoretical models are presented and discussed.

Original language	English
Pages (from-to)	883-888
Number of pages	6
Journal	Journal of Applied Physics
Volume	92
Issue number	2
DOIs	https://doi.org/10.1063/1.1488249
Publication status	Published - 15 Jul 2002
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.1488249

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abstract = "Evolution of Barkhausen jumps during the magnetization reversal process in disordered magnetic material is investigated. Based on the magnetoelastic effect (ΔE effect), we investigated the dynamics of Barkhausen jumps through an internal friction measurement of amorphous Fe-B-Mo ribbons. The ΔE caused by the Barkhausen jump is found to have a power-law scaling relation with the driving rate of magnetic field. Using numerical simulation, dynamics of Barkhausen avalanches in a realistic spin-lattice model for a disordered ferromagnet is analyzed. The dynamic scaling and inhomogeneous behavior observed in both experiments and theoretical models are presented and discussed.",

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AB - Evolution of Barkhausen jumps during the magnetization reversal process in disordered magnetic material is investigated. Based on the magnetoelastic effect (ΔE effect), we investigated the dynamics of Barkhausen jumps through an internal friction measurement of amorphous Fe-B-Mo ribbons. The ΔE caused by the Barkhausen jump is found to have a power-law scaling relation with the driving rate of magnetic field. Using numerical simulation, dynamics of Barkhausen avalanches in a realistic spin-lattice model for a disordered ferromagnet is analyzed. The dynamic scaling and inhomogeneous behavior observed in both experiments and theoretical models are presented and discussed.

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Dynamics of Barkhausen jumps in disordered ferromagnets

Abstract

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