Quantitative analysis of Josephson-quasiparticle current in superconducting single-electron transistors

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.8234· OSTI ID:279792

Nakamura, Y; Chen, C D; Tsai, J S ^[1]

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1. NEC Fundamental Research Laboratories, Tsukuba, Ibaraki 305 (Japan)

We have investigated Josephson-quasiparticle (JQP) current in superconducting single-electron transistors in which charging energy {ital E}{sub {ital C}} was larger than superconducting gap energy {Delta} and junction resistances were much larger than {ital R}{sub {ital Q}}{equivalent_to}{ital h}/4{ital e}{sup 2}. We found that not only the shapes of the JQP peaks but also their absolute height were reproduced quantitatively with a theory by Averin and Aleshkin using a Josephson energy of Ambegaokar-Baratoff{close_quote}s value. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279792
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 13 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ENERGY GAP
JOSEPHSON EFFECT
NANOSTRUCTURES
QUASI PARTICLES
SUPERCONDUCTING JUNCTIONS
TRANSISTORS
VOLTAGE DEPENDENCE