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The Ising free-energy functional (1996)

Campbell, Loudon ; Matsen, F. A.

New York, NY : Wiley-Blackwell

International Journal of Quantum Chemistry 59 (1996), S. 391-400

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Details

ISSN: 0020-7608

Schlagwort(e): Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: We show that the Ising free-energy functional f(T, X) yields a second-order phase transition. The value of X, a generalized order parameter, which minimizes the functional is the real-order parameter, Ω = tanh[Ω(TC/T)] where Tc = J/(2k) and J is the Ising coupling constant. The Ising theory is applicable to the second-order phase transitions in ferromagnets, ferroelectrics, and superconductors. The constant temperature slices of f(T, X) yields the Ising functional which is valid over the entire range of T and which is identical to the Landau functional for T/TC close to unity. © 1996 John Wiley & Sons, Inc.

Zusätzliches Material: 3 Ill.

Materialart: Digitale Medien

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