On the absence of Shapiro-like steps in certain mesoscopic S-N-S junctions

J. G. E. Harris; N. Argaman; S. J. Allen

doi:10.1103/physrevlett.78.2678

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On the absence of Shapiro-like steps in certain mesoscopic S-N-S junctions

J. G. E. Harris·N. Argaman·S. J. Allen

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Abstract

In DC transport through mesoscopic S-N-S junctions, it is known that the Josephson coupling decreases exponentially with increasing temperature, but the phase dependence of the conductance persists to much higher temperatures and decreases only as 1/T. It is pointed out here that, despite the fact that such a phase-dependent conductance does bring about an AC current for a pure DC voltage, it cannot, by itself, lead to the formation of Shapiro steps.

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J. G. E. Harris, N. Argaman, S. J. Allen. 1997-03-12. On the absence of Shapiro-like steps in certain mesoscopic S-N-S junctions. https://doi.org/10.1103/physrevlett.78.2678

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