Archivio istituzionale della ricerca dell'Università degli Studi di Palermo
IRIS è il sistema di gestione integrata dei dati della ricerca (persone, pubblicazioni, progetti, attività) adottato dall’Università di Palermo, e ha lo scopo di raccogliere, conservare, documentare, e diffondere ad accesso aperto le informazioni relative alla produzione scientifica degli autori afferenti all’Ateneo.
EnglishWe present a general interpolation theory for the phenomenological effects of thermal fluctuations in superconductors. Fluctuations are described by a simple gauge invariant extension of the gaussian effective potential for the Ginzburg-Landau static model. The approach is shown to be a genuine variational method, and to be stationary for infinitesimal gauge variations around the Landau gauge. Correlation and penetration lengths are shown to depart from the mean field behaviour in a more or less wide range of temperature below the critical regime, depending on the class of material considered. The method is quite general and yields a very good interpolation of the experimental data for very different materials.
| Data di pubblicazione: | 2006 |
| Titolo: | General interpolation scheme for thermal fluctuations in superconductors |
| Autori: | |
| Citazione: | Marotta, L., Camarda, M., Angilella, G., & Siringo, F. (2006). General interpolation scheme for thermal fluctuations in superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 73(10), 1-7. |
| Rivista: | |
| Digital Object Identifier (DOI): | 10.1103/PhysRevB.73.104517 |
| Abstract: | We present a general interpolation theory for the phenomenological effects of thermal fluctuations in superconductors. Fluctuations are described by a simple gauge invariant extension of the gaussian effective potential for the Ginzburg-Landau static model. The approach is shown to be a genuine variational method, and to be stationary for infinitesimal gauge variations around the Landau gauge. Correlation and penetration lengths are shown to depart from the mean field behaviour in a more or less wide range of temperature below the critical regime, depending on the class of material considered. The method is quite general and yields a very good interpolation of the experimental data for very different materials. |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| marotta.pdf | N/A | Open Access Visualizza/Apri |
http://hdl.handle.net/10447/65076
Copyright © 2020