Josephson interference phenomena above T c

E. Shimshoni; PM Goldbart; N Goldenfeld

Josephson interference phenomena above T c

E. Shimshoni, PM Goldbart, N Goldenfeld

Department of Physics

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

Abstract

Superconducting fluctuations induce remnants of the Josephson effect above Tc. To explore this, we consider a paraconducting cylinder, composed of two thin films connected by tunnel junctions, and threaded by magnetic flux. The electrical conductance includes a component that is an oscillatory function of the flux, having an amplitude proportional to the square of the Josephson coupling, and decaying exponentially with the circumference over a length scale ξ(T). We estimate the typical magnitude of this effect, and contrast it with related mesoscopic effects in normal-metal systems.

Original language	American English
Pages (from-to)	9865-9868
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	48
Issue number	13
State	Published - 1993

Bibliographical note

Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinos 61801-3080
Beckman Institute for Advanced Science and Technology, 405 North Mathews Avenue, Urbana, Illinois 61801

Cite this

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title = "Josephson interference phenomena above T c",

abstract = "Superconducting fluctuations induce remnants of the Josephson effect above Tc. To explore this, we consider a paraconducting cylinder, composed of two thin films connected by tunnel junctions, and threaded by magnetic flux. The electrical conductance includes a component that is an oscillatory function of the flux, having an amplitude proportional to the square of the Josephson coupling, and decaying exponentially with the circumference over a length scale ξ(T). We estimate the typical magnitude of this effect, and contrast it with related mesoscopic effects in normal-metal systems.",

author = "E. Shimshoni and PM Goldbart and N Goldenfeld",

note = "Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinos 61801-3080 Beckman Institute for Advanced Science and Technology, 405 North Mathews Avenue, Urbana, Illinois 61801",

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TY - JOUR

T1 - Josephson interference phenomena above T c

AU - Shimshoni, E.

AU - Goldbart, PM

AU - Goldenfeld, N

N1 - Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinos 61801-3080 Beckman Institute for Advanced Science and Technology, 405 North Mathews Avenue, Urbana, Illinois 61801

PY - 1993

Y1 - 1993

N2 - Superconducting fluctuations induce remnants of the Josephson effect above Tc. To explore this, we consider a paraconducting cylinder, composed of two thin films connected by tunnel junctions, and threaded by magnetic flux. The electrical conductance includes a component that is an oscillatory function of the flux, having an amplitude proportional to the square of the Josephson coupling, and decaying exponentially with the circumference over a length scale ξ(T). We estimate the typical magnitude of this effect, and contrast it with related mesoscopic effects in normal-metal systems.

AB - Superconducting fluctuations induce remnants of the Josephson effect above Tc. To explore this, we consider a paraconducting cylinder, composed of two thin films connected by tunnel junctions, and threaded by magnetic flux. The electrical conductance includes a component that is an oscillatory function of the flux, having an amplitude proportional to the square of the Josephson coupling, and decaying exponentially with the circumference over a length scale ξ(T). We estimate the typical magnitude of this effect, and contrast it with related mesoscopic effects in normal-metal systems.

M3 - Article

VL - 48

SP - 9865

EP - 9868

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

IS - 13

ER -

Josephson interference phenomena above T c

Abstract

Bibliographical note

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