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Coherent versus Incoherent c-Axis Josephson Tunneling Between Layered Superconductors

R. A. Klemm·G. Arnold·C. T. Rieck·K. Scharnberg
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Abstract

We calculate Ic(T) and Rn for both coherent and incoherent electron tunneling across a c-axis break junction between nu=s,d_x^2-y^2-wave superconducting half spaces, each with c-axis bandwidth 2J. Coherent quasiparticle tunneling only occurs for voltages V<2J/e, leading to difficulties in measuring Rn for underdoped samples. The coherent part of Ic(0) is independent of Delta_nu(0) for J/Delta_nu(0)<<1, and can be large. Our results are discussed with regard to recent experiments.

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R. A. Klemm, G. Arnold, C. T. Rieck, K. Scharnberg. 1998-05-22. Coherent versus Incoherent c-Axis Josephson Tunneling Between Layered Superconductors. https://doi.org/10.1103/physrevb.58.14203

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