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Title
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Three-dimensional (3D) Ising universality in magnets and critical indices at fluid-fluid phase transition
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Author
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Abstract
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| 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 β = 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. |
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Language
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English
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Source (journal)
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Phase transitions. - New York
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Publication
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New York
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2011
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ISSN
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0141-1594
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DOI
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10.1080/01411594.2010.535351
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Volume/pages
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84
:4
(2011)
, p. 299-307
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ISI
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000288673500001
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Full text (Publisher's DOI)
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