Multicritical behavior of the Ising metamagnet in both external longitudinal and transverse fields

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	Multicritical behavior of the Ising metamagnet in both external longitudinal and transverse fields
	G. Z. Wei; J. Liu; H. L. Miao; A. Du
	2007
Source Publication	Physical Review B
ISSN	1098-0121
Volume	76 Issue:5
Abstract	A two-sublattice Ising metamagnet in both external longitudinal and transverse fields is studied within the mean-field approach based on Bogoliubov's inequality for the Gibbs free energy. At finite temperatures, by changing values of the parameters of the model many different types of phase diagrams in the longitudinal field-temperature plane and in the transverse field-temperature plane are determined. The results show that the tricritical point can occur and decomposes into a critical end point and a double critical end point in a certain small region of the external longitudinal and transverse fields. The temperature of the tricritical point monotonically increases with decreasing the transverse magnetic field Omega and increasing the longitudinal magnetic field h. A line of fourth-order critical points is also determined.
description.department	ne univ technol, coll sci, shenyang 110004, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wei, gz (reprint author), ne univ technol, coll sci, shenyang 110004, peoples r china;guozhuwei02@sina.com
Keyword	Phase-diagrams Monte-carlo Tricritical Behavior Magnetic-properties Model Antiferromagnet Simulation Stability Anomalies Points
URL	查看原文
WOS ID	WOS:000249155100073
Citation statistics	Cited Times:20[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/33893
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	G. Z. Wei,J. Liu,H. L. Miao,et al. Multicritical behavior of the Ising metamagnet in both external longitudinal and transverse fields[J]. Physical Review B,2007,76(5).
APA	G. Z. Wei,J. Liu,H. L. Miao,&A. Du.(2007).Multicritical behavior of the Ising metamagnet in both external longitudinal and transverse fields.Physical Review B,76(5).
MLA	G. Z. Wei,et al."Multicritical behavior of the Ising metamagnet in both external longitudinal and transverse fields".Physical Review B 76.5(2007).

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