Prog. Theor. Phys. Vol. 70 No. 5 (1983) pp. 1197-1206

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A Simplified Model of Phase Transition in Amorphous Antiferromagnets. II

— Effect of the Magnetic Field —

Hikaru Kawamura

Department of Physics, College of General Education, Osaka University, Toyonaka 560

(Received June 8, 1983)

Abstract:

Investigation of a simplified statistical model of Ising amorphous antiferromagnets is continued. The effect of the magnetic field on various thermodynamical quantities is studied with use of the Monte Carlo method. It is found that application of a certain range of finite magnetic field changes nature of the spin freezing transition qualitatively. The low temperature phase becomes essentially like “ferrimagnetic” when viewed in a properly defined “curved” space. The field cooled magnetization at low temperatures has a plateau region versus the magnetic field whereas the zero field cooled magnetization shows almost linear behavior.

URL : http://ptp.ipap.jp/link?PTP/70/1197/
DOI : 10.1143/PTP.70.1197

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Citing Article(s) :

Progress of Theoretical Physics Vol. 70 No. 3 (1983) pp. 697-709 :
A Simplified Model of Phase Transition in Amorphous Antiferromagnets. I

Hikaru Kawamura
Progress of Theoretical Physics Vol. 73 No. 2 (1985) pp. 311-318 :
A Simplified Model of Phase Transition in Amorphous Antiferromagnets. III

Hikaru Kawamura
Progress of Theoretical Physics Vol. 78 No. 1 (1987) pp. 83-96 :
Information Entropy and the Statistical Geometry of Two-Dimensional Liquids

Robert Collins, Tohru Ogawa and Taeko Ogawa