Coherent versus incoherent c-axis Josephson tunneling between layered superconductors
R. A. Klemm, G. Arnold, C. T. Rieck, K. Scharnberg
DOI 10.1103/PhysRevB.58.14203 · Physical Review B
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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 two ν=s,dx2−y2-wave layered 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 Δν(0) for J/Δν(0)≪1, and can be large. Our results are discussed with regard to recent experiments.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 62 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 83 | Pressure not reported | unknown |
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