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Infinite-order phase transition in a classical spin system |
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| Authors: | O Costin R D Costin C P Grünfeld |
| Institution: | (1) Department of Theoretical Physics, IFIN, Central Institute of Physics, Bucharest-Magurele, Romania;(2) INCREST, B-dul Pacii 220, 79622 Bucharest, Romania |
| Abstract: | For an exactly soluble classical spin model with long-range inhomogeneous coupling it is proved that in the absence of external magnetic field the free energy is aC
 function of the temperature at the critical point. |
| Keywords: | Inhomogeneous spin model phase transition critical behavior exactly soluble model |
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