Simulation of Exchange Bias by Two-Phase Ferrimagnetic Model Using Antiferromagnetic Interlayer Coupling for the Fe3O4 Thin Film

M. Yoneda; S. Obata; M. Niwa; N. Hirata; M. Motohashi

doi:10.2320/matertrans.M2018257

Simulation of Exchange Bias by Two-Phase Ferrimagnetic Model Using Antiferromagnetic Interlayer Coupling for the Fe₃O₄ Thin Film

M. Yoneda, S. Obata, M. Niwa, N. Hirata, M. Motohashi

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Keywords: exchange bias, anti-phase boundary, magnetic hysteresis loops, computer simulation, retarded-trace method

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2019 Volume 60 Issue 1 Pages 55-60

DOI https://doi.org/10.2320/matertrans.M2018257

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Abstract

We conducted a theoretical study on a phenomenon where an exchange bias effect appears in a Fe₃O₄ thin film containing an opposite phase boundary when a two-phase ferrimagnetic model is introduced using antiferromagnetic interlayer coupling. We studied the simulation technique for such a system and derived magnetic hysteresis loops in the exchange bias effect by computer simulations using the retarded-trace method.

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