Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition

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	Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition
	Z. D. Zhang; N. H. March
	2011
发表期刊	Phase Transitions
ISSN	0141-1594
卷号	84 期号:4 页码:299-307
摘要	Experimental data for critical exponents in some magnetic materials are compared with recent theoretical results on the three-dimensional (3D) Ising model, as derived by one of us (ZDZ) based on two conjectures [Z.D. Zhang, Conjectures on the exact solution of three-dimensional (3D) simple orthorhombic Ising lattices, Phil. Mag. 87 (2007), pp. 5309-5419]. It is found that critical exponents in some bulk magnetic materials indeed form a 3D Ising universality. Our attention is then focused on the critical indices at fluid-fluid phase transition. We suggest to use Zhang's exponent = 3/8 to fit the experimental data over the wider asymptotic region near the critical point of a fluid-fluid phase transition. The 3D Ising universality should exist for critical indices in a certain class of magnets and at fluid-fluid phase transition.
部门归属	[zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [march, n. h.] univ antwerp, dept phys, b-2020 antwerp, belgium. [march, n. h.] univ oxford, oxford, england.;zhang, zd (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;zdzhang@imr.ac.cn
关键词	Magnetically Ordered Materials Fluid-fluid Phase Transitions Order-disorder Effects Ferromagnetic Curie Temperature Liquid Critical Phenomena X-ray-scattering Critical Exponents Critical-point Coexistence Curves Binary-solutions Ionic-solutions Behavior Equation
URL	查看原文
WOS记录号	WOS:000288673500001
引用统计	被引频次：56[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/321006/30937
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. D. Zhang,N. H. March. Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition[J]. Phase Transitions,2011,84(4):299-307.
APA	Z. D. Zhang,&N. H. March.(2011).Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition.Phase Transitions,84(4),299-307.
MLA	Z. D. Zhang,et al."Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition".Phase Transitions 84.4(2011):299-307.