Deepak Kumar, ; Kamlesh, Kamlesh (1986) Mode condensation in a hierarchical system Physical Review Letters, 57 (24). pp. 3101-3104. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v57/i24/p3101_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.57.3101
Abstract
A spherical model of Ising spins, placed on sites that are arranged in a cluster hierarchy, is studied. For the ferromagnetic transition, the critical exponents are found to have nonuniversal values in a certain range of system parameters, while they assume classical values in another range. Correlation functions show a behavior which is very different from the uniform systems. For antiferromagnetic interactions, the system has no transition, which is related to the fact that condensation cannot occur in localized modes.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 9894 |
| Deposited On: | 02 Nov 2010 10:30 |
| Last Modified: | 31 May 2011 09:48 |
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