Observation of anomalous reentrant superconductivity in Sr1-xKxBiO3

D. C. Kim; J. S. Kim; H. R. Kang; Gyu-Tae Kim; A. N. Baranov; Y. W. Park; J. S. Pshirkov; E. V. Antipov

doi:10.1103/PhysRevB.64.064502

Observation of anomalous reentrant superconductivity in Sr_1-xK_xBiO₃

D. C. Kim, J. S. Kim, H. R. Kang, Gyu-Tae Kim, A. N. Baranov, Y. W. Park, J. S. Pshirkov, E. V. Antipov

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10 Citations (Scopus)

Abstract

We report the observation of a reentrant superconducting-normal resistive transition in Sr_1-xK_xBiO₃ super-conductors. In contrast to previously reported reentrant resistive transition behaviors, the reentrant resistivity appearing at zero magnetic field is suppressed to zero by applying an external magnetic field (H) or increasing the electrical transport current (I): an observation of the recovery of a zero resistive superconducting state induced by H or I. An analysis of the normal-state resistivity data indicates the important role that disordered junction barriers between superconducting grains might play on the observed reentrant resistivity behavior. Possible physical origins of this anomalous phenomenon are discussed.

Original language	English
Article number	064502
Pages (from-to)	645021-645026
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.64.064502
Publication status	Published - 2001 Aug 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Observation of anomalous reentrant superconductivity in Sr1-xKxBiO3",

abstract = "We report the observation of a reentrant superconducting-normal resistive transition in Sr1-xKxBiO3 super-conductors. In contrast to previously reported reentrant resistive transition behaviors, the reentrant resistivity appearing at zero magnetic field is suppressed to zero by applying an external magnetic field (H) or increasing the electrical transport current (I): an observation of the recovery of a zero resistive superconducting state induced by H or I. An analysis of the normal-state resistivity data indicates the important role that disordered junction barriers between superconducting grains might play on the observed reentrant resistivity behavior. Possible physical origins of this anomalous phenomenon are discussed.",

author = "Kim, {D. C.} and Kim, {J. S.} and Kang, {H. R.} and Gyu-Tae Kim and Baranov, {A. N.} and Park, {Y. W.} and Pshirkov, {J. S.} and Antipov, {E. V.}",

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AU - Kim, D. C.

AU - Kim, J. S.

AU - Kang, H. R.

AU - Kim, Gyu-Tae

AU - Baranov, A. N.

AU - Park, Y. W.

AU - Pshirkov, J. S.

AU - Antipov, E. V.

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AB - We report the observation of a reentrant superconducting-normal resistive transition in Sr1-xKxBiO3 super-conductors. In contrast to previously reported reentrant resistive transition behaviors, the reentrant resistivity appearing at zero magnetic field is suppressed to zero by applying an external magnetic field (H) or increasing the electrical transport current (I): an observation of the recovery of a zero resistive superconducting state induced by H or I. An analysis of the normal-state resistivity data indicates the important role that disordered junction barriers between superconducting grains might play on the observed reentrant resistivity behavior. Possible physical origins of this anomalous phenomenon are discussed.

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Observation of anomalous reentrant superconductivity in Sr_1-xK_xBiO₃

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