Ground-state phase diagrams of Ising metamagnet in a mixed longitudinal and transverse magnetic field

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	Ground-state phase diagrams of Ising metamagnet in a mixed longitudinal and transverse magnetic field
	H. L. Miao; G. Z. Wei; J. Liu; J. J. Geng
	2008
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	320 期号:17 页码:2172-2179
摘要	The ground-state magnetic properties of a two-sublattice Ising metamagnet in a mixed longitudinal and transverse magnetic field are studied within the effective-field theory. A parameter j(2) = J(2)/J(1) is introduced, which reflects the strength ratio of spin coupling between adjacent planes and in each plane. In addition to the second-order transition lines, the first-order transition lines are also presented, since the ground-state energy can be calculated numerically. The ground-state phase diagrams in h(x)-h(z) are presented. The results show that when j(2) <0 the phase transition of the system is always first-order for h(x) < 2.751, and when -1000 <= j(2)<0 it is always second-order for h(x) > 4.36. For the given h(x) (0 14.71. There is no fourth-order critical point in the phase diagrams given by using EFT as found by using mean field theory (MFT). (C) 2008 Elsevier B. V. All rights reserved.
部门归属	[miao, hailing; wei, guozhu; liu, jing; geng, jiajia] northeastern univ, coll sci, shenyang 110004, peoples r china. [wei, guozhu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wei, gz (reprint author), northeastern univ, coll sci, shenyang 110004, peoples r china;guozhuwei02@sina.com
关键词	Transverse Field Ising Metamagnet Effective-field Theory First-order Transition Second-order Transition Multicritical Points Monte-carlo Model Behavior Spin
URL	查看原文
WOS记录号	WOS:000256378000008
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33036
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. L. Miao,G. Z. Wei,J. Liu,et al. Ground-state phase diagrams of Ising metamagnet in a mixed longitudinal and transverse magnetic field[J]. Journal of Magnetism and Magnetic Materials,2008,320(17):2172-2179.
APA	H. L. Miao,G. Z. Wei,J. Liu,&J. J. Geng.(2008).Ground-state phase diagrams of Ising metamagnet in a mixed longitudinal and transverse magnetic field.Journal of Magnetism and Magnetic Materials,320(17),2172-2179.
MLA	H. L. Miao,et al."Ground-state phase diagrams of Ising metamagnet in a mixed longitudinal and transverse magnetic field".Journal of Magnetism and Magnetic Materials 320.17(2008):2172-2179.