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Shot noise and multiple Andreev reflections in d-wave superconductors

J. C. Cuevas·M. Fogelstrom
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Abstract

We present a theoretical analysis of the shot noise in d-wave/d-wave contacts with arbitrary transparency, including the contribution of multiple Andreev reflections. The multiple charge quanta transferred in these processes are revealed as a huge enhancement of the noise-current ratio at low voltages, which survives for all crystal misorientations. We also show how different ingredients like non-magnetic impurities or a magnetic field produce very characteristic hallmarks in the shot noise, which can be used as a further test of the d-wave scenario in superconducting cuprates.

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J. C. Cuevas, M. Fogelstrom. 2002-05-13. Shot noise and multiple Andreev reflections in d-wave superconductors. https://doi.org/10.1103/physrevlett.89.227003

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