Prato, Martino De and Pelissetto, Andrea and Vicari, Ettore (2003) Third-harmonic exponent in three-dimensional N-vector models. Physical review. B, Condensed matter and materials physics, 68 . 092403. ISSN 1550-235X
Full text not available from this repository.Official URL: http://arxiv.org/abs/cond-mat/0302145v1
Abstract
We compute the crossover exponent associated with the spin-3 operator in three-dimensional O(N) models. A six-loop field-theoretical calculation in the fixed-dimension approach gives $\phi_3 = 0.601(10)$ for the experimentally relevant case N=2 (XY model). The corresponding exponent $\beta_3 = 1.413(10)$ is compared with the experimental estimates obtained in materials undergoing a normal-incommensurate structural transition and in liquid crystals at the smectic-A--hexatic-B phase transition, finding good agreement.
| Item Type: | Article |
|---|---|
| Additional Information: | Imported from arXiv |
| Subjects: | Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici |
| Divisions: | Dipartimenti (until 2012) > DIPARTIMENTO DI FISICA " E. FERMI" |
| Depositing User: | dott.ssa Sandra Faita |
| Date Deposited: | 09 Apr 2015 15:29 |
| Last Modified: | 09 Apr 2015 15:29 |
| URI: | http://eprints.adm.unipi.it/id/eprint/1793 |
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