Quasiparticle-induced coupling effects between two superconducting weak links

L. G. Neumann; Y. D. Dai; Y. H. Kao

doi:10.1063/1.92840

Quasiparticle-induced coupling effects between two superconducting weak links

L. G. Neumann
, Y. D. Dai
, Y. H. Kao

Physics

Stony Brook University

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Interactions between two independently biased thin-film superconducting microbridges yield a voltage step in the current-voltage characteristics of the bridges. Perturbation theory applied to the quasiparticle coupling currents explains these results as apparent critical current depression due to a regenerative feedback effect. Calculated changes in the critical current caused by the combined effects of order parameter depression, dc and ac quasiparticle coupling currents are in good agreement with experiments.

Original language	English
Pages (from-to)	648-650
Number of pages	3
Journal	Applied Physics Letters
Volume	39
Issue number	8
DOIs	https://doi.org/10.1063/1.92840
State	Published - 1981

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title = "Quasiparticle-induced coupling effects between two superconducting weak links",

abstract = "Interactions between two independently biased thin-film superconducting microbridges yield a voltage step in the current-voltage characteristics of the bridges. Perturbation theory applied to the quasiparticle coupling currents explains these results as apparent critical current depression due to a regenerative feedback effect. Calculated changes in the critical current caused by the combined effects of order parameter depression, dc and ac quasiparticle coupling currents are in good agreement with experiments.",

author = "Neumann, \{L. G.\} and Dai, \{Y. D.\} and Kao, \{Y. H.\}",

year = "1981",

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pages = "648--650",

journal = "Applied Physics Letters",

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AU - Neumann, L. G.

AU - Dai, Y. D.

AU - Kao, Y. H.

PY - 1981

Y1 - 1981

N2 - Interactions between two independently biased thin-film superconducting microbridges yield a voltage step in the current-voltage characteristics of the bridges. Perturbation theory applied to the quasiparticle coupling currents explains these results as apparent critical current depression due to a regenerative feedback effect. Calculated changes in the critical current caused by the combined effects of order parameter depression, dc and ac quasiparticle coupling currents are in good agreement with experiments.

AB - Interactions between two independently biased thin-film superconducting microbridges yield a voltage step in the current-voltage characteristics of the bridges. Perturbation theory applied to the quasiparticle coupling currents explains these results as apparent critical current depression due to a regenerative feedback effect. Calculated changes in the critical current caused by the combined effects of order parameter depression, dc and ac quasiparticle coupling currents are in good agreement with experiments.

UR - https://www.scopus.com/pages/publications/0642298844

U2 - 10.1063/1.92840

DO - 10.1063/1.92840

M3 - Article

AN - SCOPUS:0642298844

SN - 0003-6951

VL - 39

SP - 648

EP - 650

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

ER -

Quasiparticle-induced coupling effects between two superconducting weak links

Abstract

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