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Current-voltage relation for superconducting d-wave junctions

Magnus Hurd
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Abstract

We calculate the current-voltage (I-V) relation for planar superconducting d-wave junctions for both arbitrary transmission of the junction and arbitrary orientation of the d-wave superconductors. The midgap states (MGS) present at interfaces/surfaces of a d-wave superconductor influence the I-V relation. In some arrangements we find considerable negative differential conductance and lower threshold voltage for non-zero current due to resonant conduction through MGS.

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Magnus Hurd. 1997-02-03. Current-voltage relation for superconducting d-wave junctions. https://doi.org/10.1103/physrevb.55.r11993

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