High-resistance state of phase coherent nanoscale thin-film Al superconducting nanorings in magnetic fields

S. D. Snyder; T. Dunn; M. J. Erickson; J. Kinney; Yeonbae Lee; J. Nelson; A. M. Goldman

doi:10.1103/PhysRevB.87.144503

High-resistance state of phase coherent nanoscale thin-film Al superconducting nanorings in magnetic fields

S. D. Snyder, T. Dunn, M. J. Erickson, J. Kinney, Yeonbae Lee, J. Nelson, A. M. Goldman

Physics and Astronomy (Twin Cities)

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

2 Scopus citations

Abstract

An interesting and novel effect has been observed in the form of a high-resistance state below the superconducting transition temperature of Al nanorings. The resistance exceeded 15 times the value of the normal-state resistance even though the ring was superconducting. This counterintuitive effect can be explained in terms of charge imbalance caused by the nonequilibrium accumulation of quasiparticles near tilted normal-superconductor interfaces that occur naturally in highly constricted nanostructures. Simulations using finite-element analysis have been performed which support the experimental results. Similar results have been observed in wires and disks, but the results of this work clarify and extend this previous work.

Original language	English (US)
Article number	144503
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.87.144503
State	Published - Apr 3 2013

Access

10.1103/PhysRevB.87.144503

OpenUrl availability

Full text

Cite this

@article{23ffc875e3074220bddf8bd7854a2f54,

title = "High-resistance state of phase coherent nanoscale thin-film Al superconducting nanorings in magnetic fields",

abstract = "An interesting and novel effect has been observed in the form of a high-resistance state below the superconducting transition temperature of Al nanorings. The resistance exceeded 15 times the value of the normal-state resistance even though the ring was superconducting. This counterintuitive effect can be explained in terms of charge imbalance caused by the nonequilibrium accumulation of quasiparticles near tilted normal-superconductor interfaces that occur naturally in highly constricted nanostructures. Simulations using finite-element analysis have been performed which support the experimental results. Similar results have been observed in wires and disks, but the results of this work clarify and extend this previous work.",

author = "Snyder, {S. D.} and T. Dunn and Erickson, {M. J.} and J. Kinney and Yeonbae Lee and J. Nelson and Goldman, {A. M.}",

year = "2013",

month = apr,

day = "3",

doi = "10.1103/PhysRevB.87.144503",

language = "English (US)",

volume = "87",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "14",

}

TY - JOUR

T1 - High-resistance state of phase coherent nanoscale thin-film Al superconducting nanorings in magnetic fields

AU - Snyder, S. D.

AU - Dunn, T.

AU - Erickson, M. J.

AU - Kinney, J.

AU - Lee, Yeonbae

AU - Nelson, J.

AU - Goldman, A. M.

PY - 2013/4/3

Y1 - 2013/4/3

N2 - An interesting and novel effect has been observed in the form of a high-resistance state below the superconducting transition temperature of Al nanorings. The resistance exceeded 15 times the value of the normal-state resistance even though the ring was superconducting. This counterintuitive effect can be explained in terms of charge imbalance caused by the nonequilibrium accumulation of quasiparticles near tilted normal-superconductor interfaces that occur naturally in highly constricted nanostructures. Simulations using finite-element analysis have been performed which support the experimental results. Similar results have been observed in wires and disks, but the results of this work clarify and extend this previous work.

AB - An interesting and novel effect has been observed in the form of a high-resistance state below the superconducting transition temperature of Al nanorings. The resistance exceeded 15 times the value of the normal-state resistance even though the ring was superconducting. This counterintuitive effect can be explained in terms of charge imbalance caused by the nonequilibrium accumulation of quasiparticles near tilted normal-superconductor interfaces that occur naturally in highly constricted nanostructures. Simulations using finite-element analysis have been performed which support the experimental results. Similar results have been observed in wires and disks, but the results of this work clarify and extend this previous work.

UR - http://www.scopus.com/inward/record.url?scp=84876161085&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876161085&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.87.144503

DO - 10.1103/PhysRevB.87.144503

M3 - Article

AN - SCOPUS:84876161085

SN - 1098-0121

VL - 87

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 14

M1 - 144503

ER -

High-resistance state of phase coherent nanoscale thin-film Al superconducting nanorings in magnetic fields

Abstract

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this