Anisotropy, exchange coupling and phase transition in bilayer systems

Xiao Hu; Yoshiyuki Kawazoe

doi:10.1016/0956-716X(95)00429-Y

Anisotropy, exchange coupling and phase transition in bilayer systems

Xiao Hu, Yoshiyuki Kawazoe

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

Abstract

Phase transitions in magnetic multilayer structures are studied with mean-field theory. Transitions between different magnetization configurations in bilayer systems with different anisotropies are discussed by means of variational method. The responsible mechanism is the competition between the anisotropy energy and the exchange coupling. The para-ferro magnetic phase transition in a ferromagnetic bilayer system is investigated with the Ginzburg-Landau theory. The effect of finiteness of the layer thickness has been revealed. Critical phenomena according to the variance of the layer thickness are clarified.

Original language	English
Pages (from-to)	1841-1847
Number of pages	7
Journal	Scripta Metallurgica et Materiala
Volume	33
Issue number	10-11
DOIs	https://doi.org/10.1016/0956-716X(95)00429-Y
Publication status	Published - 1995 Dec 1

ASJC Scopus subject areas

Engineering(all)

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10.1016/0956-716X(95)00429-Y

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abstract = "Phase transitions in magnetic multilayer structures are studied with mean-field theory. Transitions between different magnetization configurations in bilayer systems with different anisotropies are discussed by means of variational method. The responsible mechanism is the competition between the anisotropy energy and the exchange coupling. The para-ferro magnetic phase transition in a ferromagnetic bilayer system is investigated with the Ginzburg-Landau theory. The effect of finiteness of the layer thickness has been revealed. Critical phenomena according to the variance of the layer thickness are clarified.",

author = "Xiao Hu and Yoshiyuki Kawazoe",

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AB - Phase transitions in magnetic multilayer structures are studied with mean-field theory. Transitions between different magnetization configurations in bilayer systems with different anisotropies are discussed by means of variational method. The responsible mechanism is the competition between the anisotropy energy and the exchange coupling. The para-ferro magnetic phase transition in a ferromagnetic bilayer system is investigated with the Ginzburg-Landau theory. The effect of finiteness of the layer thickness has been revealed. Critical phenomena according to the variance of the layer thickness are clarified.

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Anisotropy, exchange coupling and phase transition in bilayer systems

Abstract

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