Proposed magnetic equation of state for the three-dimensional Ising model near criticality: Is the insulating ferromagnet CrBr(3) a candidate?

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	Proposed magnetic equation of state for the three-dimensional Ising model near criticality: Is the insulating ferromagnet CrBr(3) a candidate?
	N. H. March; Z. D. Zhang
	2009
发表期刊	Physics Letters A
ISSN	0375-9601
卷号	373 期号:23-24 页码:2075-2076
摘要	In a magnetic system, consistent with Griffiths analyticity requirements one can parameterize the equation of state near criticality by writing H = r(beta delta)h(theta), T = rt(theta) and the magnetization M = r(beta)m(theta), where T is measured from the critical temperature. For the insulating ferromagnet CrBr(3), the experimental data of Ho and Litster [J.T. Ho, J.D. Litster, Phys. Rev. Lett. 22 (1969) 6031 is well fitted by m(theta) as a linear function of theta [P. Schofield, J.D. Litster, J.T Ho, Phys. Rev. Lett. 23 (1969) 1098]. Also Ho and Litster give beta = 0.368, gamma = 1.215 and delta = 4.3. Those critical experiments are very close to the recent 31) king results of Zhang [Z.D. Zhang, Philos. Mag. 87 (2007) 5309], namely beta = 3/8, gamma = 5/4 and delta = 13/3. We therefore predict that m(theta) will be proportional to theta as a fingerprint of the 3D Ising Hamiltonian. (C) 2009 Elsevier B.V. All rights reserved.
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 oxford, oxford ox1 2jd, england. [march, n. h.] univ antwerp, dept phys, b-2020 antwerp, belgium.;zhang, zd (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;zdzhang@imr.ac.cn
关键词	Critical-point Effects Critical Exponents Ising Model Criticality Ferromagnet Magnetic Equation Of State Critical Exponents
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32198
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. H. March,Z. D. Zhang. Proposed magnetic equation of state for the three-dimensional Ising model near criticality: Is the insulating ferromagnet CrBr(3) a candidate?[J]. Physics Letters A,2009,373(23-24):2075-2076.
APA	N. H. March,&Z. D. Zhang.(2009).Proposed magnetic equation of state for the three-dimensional Ising model near criticality: Is the insulating ferromagnet CrBr(3) a candidate?.Physics Letters A,373(23-24),2075-2076.
MLA	N. H. March,et al."Proposed magnetic equation of state for the three-dimensional Ising model near criticality: Is the insulating ferromagnet CrBr(3) a candidate?".Physics Letters A 373.23-24(2009):2075-2076.