A universal scaling law of exchange bias training effect

2012/01/03 by Zhen Shi, Sheng Zhou, Shi, Z. +3
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.1201.0620

openalex publication_date 2012/01/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Exchange bias training effect in ferromagnetic/antiferromagnetic bilayers is investigated. In some systems the evolution of the exchange bias field H_E with the number of cycle n cannot be fitted by the empirical 1/√(n) function. A unified expression is derived from a discretized Landau-Khalatnikov equation in the framework of the thermodynamics model which is proposed by Ch. Binek. This generalized model describes well training effect independent of the magnetization reversal mechanism in the ferromagnetic layers.

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