Simulation of experimental results on high-Tc superconductors: A phenomenological model
Creators
- 1. Istituto Nazionale di Fisica della Materia, Unita di Salerno, Dipartimento di Fisica, Universita di Salerno, 84081 Baronissi, Salerno (Italy)
- 2. Istituto Nazionale di Fisica della Materia, Unita di Salerno, Dipartimento di Fisica Teorica e Sue Metodologie per le Scienze Applicate, Universita di Salerno, 84081 Baronissi, Salerno (Italy)
Description
A model based on a conductance expressed as a superposition of two BCS-like contributions and a linear one is proposed for the analysis of the tunneling spectra of the 90 and 60 K phases of the YBaCuO compounds. A consistent explanation of the experiments, supported by satisfactory quantitative fittings of the experimental data in both the superconducting and the normal state, is presented with a careful study of the role played by the linear term. The possible extension of the model to other copper-oxide superconductors is also discussed. Referring to a simplified one-gap version of the model, theoretical results concerning the behavior of the specific heat and the ultrasonic attenuation coefficients are found to be in good qualitative agreement with the experiments. copyright 1996 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 53
- Journal Issue
- 10
- Journal Page Range
- p. 6764-6773.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27080598
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BCS THEORY; COMPUTERIZED SIMULATION; ELECTRIC CONDUCTIVITY; HIGH-TC SUPERCONDUCTORS; SPECIFIC HEAT; TUNNEL EFFECT; ULTRASONIC WAVES
- Descriptors DEC
- ELECTRICAL PROPERTIES; PHYSICAL PROPERTIES; SIMULATION; SOUND WAVES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES