Evolution from the BCS to the Bose-Einstein Limit in a d-Wave Superconductor at T=0

• Authors: L. Borkowski , C. Sá de Melo
• Languages of publication: EN

Abstracts

EN

We study the evolution from BCS to Bose limit in a two-dimensional d-wave superconductor at zero temperature and low density of charge carriers within the mean-field theory. We examine single quasiparticle properties when particle density and attraction strength are varied. For sufficiently high interaction strength there is a critical density below which the system has a gap. The spectral and thermodynamic properties of the system do not evolve smoothly from the BCS-like to the Bose-like regime.

Keywords

EN

74.20.-z; 74.25.Gz; 67.40.Db

Discipline

• 74.20.-z: Theories and models of superconducting state
• 74.25.Gz: Optical properties

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 99
• Issue: 6
• Pages: 691-698

Dates

published

2001-06

(unknown)

2001-05-07

received

2001-18-01

Contributors

author

L. Borkowski

• Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

C. Sá de Melo

• School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA

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Identifiers

DOI

10.12693/APhysPolA.99.691