PHASE FLUCTUATIONS OF THE SUPERCONDUCTING ORDER-PARAMETER IN HIGH-TC SYSTEMS

Authors
ALVAREZ JJV BALSEIRO CA
Citation
Jjv. Alvarez et Ca. Balseiro, PHASE FLUCTUATIONS OF THE SUPERCONDUCTING ORDER-PARAMETER IN HIGH-TC SYSTEMS, Solid state communications, 98(4), 1996, pp. 313-316
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
98
Issue
4
Year of publication
1996
Pages
313 - 316
Database
ISI
SICI code
0038-1098(1996)98:4<313:PFOTSO>2.0.ZU;2-N
Abstract
Starting with a microscopic Hamiltonian describing a superconducting s ystem, we use the functional integral formalism to map the problem to the XY-model. The effective model describes vortex-line fluctuations w ith a coupling constant J that is given in terms of the microscopic pa rameters. The results obtained with this procedure, which is valid at all temperatures, are compared with those obtained in previous works.