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Quasi-Particle Tunneling of D-Wave Superconductors
並列摘要
There are apparently contradicting evidence about the high-Tc superconducting order parameter symmetry from the experimental studies of Josephson currents. Although there are far more experimental studies about the quasi-particle tunneling of high-Tc superconductors in various geometries, it is difficult to extract the nature of the order parameter because of lacking theoretical comparison. We calculate I-V curves and dI/dV-V curves of quasi-particle tunneling from high-Tc superconductor to normal metal. The normal state of the high-Tc superconductor is assumed to be that of a 2-D tight-binding model. Numerical results along different crystalline directions for the d-wave symmetry are carried out. The differences in the conductance spectra are emphasized and compared with available experimental data.
並列關鍵字
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延伸閱讀
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