SIMULATION OF SUPERCONDUCTING TRANSITIONS IN A 2D MODEL SYSTEM WITH LOCAL PAIRING

Authors
Citation
Dj. Newman et B. Ng, SIMULATION OF SUPERCONDUCTING TRANSITIONS IN A 2D MODEL SYSTEM WITH LOCAL PAIRING, Physica. C, Superconductivity, 220(1-2), 1994, pp. 7-20
Citations number
22
Categorie Soggetti
Physics, Applied
ISSN journal
09214534
Volume
220
Issue
1-2
Year of publication
1994
Pages
7 - 20
Database
ISI
SICI code
0921-4534(1994)220:1-2<7:SOSTIA>2.0.ZU;2-T
Abstract
Monte Carlo simulations are used to provide a detailed comparison of t he properties of the ''hole-modulated hopping'' model with experimenta lly determined properties of high-T-c superconductors. New properties simulated in this work include the density of quasiparticle fluctuatio ns above and below T-c, the density of ordered quasiparticles and a te mperature-dependent coherence length. Several comparisons are made bet ween the simulated results and known properties of high-T-c supercondu ctors. Qualitative agreement is obtained, but quantitative discrepanci es lead to the conclusion that the range of the pairing interaction in the hamiltonian used for this study is too short to account for the p roperties of real systems.