Coherent current transport in wide ballistic Josephson junctions
Journal article, 2004

We present an experimental and theoretical investigation of coherent current transport in wide ballistic superconductor-two dimensional electron gas-superconductor junctions. It is found experimentally that upon increasing the junction length, the subharmonic gap structure in the current-voltage characteristics is shifted to lower voltages, and the excess current at voltages much larger than the superconducting gap decreases. Applying a theory of coherent multiple Andreev reflection, we show that these observations can be explained in terms of transport through Andreev resonances.
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Published in

Physical Review B - Condensed Matter and Materials Physics

10980121 (ISSN) 1550235x (eISSN)

Vol. 70 Issue 21 p. 1-4 art. no 212505

Categorizing

Subject Categories (SSIF 2011)

Inorganic Chemistry

Other Physics Topics

Information Systemes, Social aspects

Condensed Matter Physics

Identifiers

DOI

10.1103/PhysRevB.70.212505

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4/6/2022 5