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

Research output: Contribution to journalArticle

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.

Original languageEnglish
Article number064502
Pages (from-to)645021-645026
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number6
Publication statusPublished - 2001 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Kim, D. C., Kim, J. S., Kang, H. R., Kim, G-T., Baranov, A. N., Park, Y. W., Pshirkov, J. S., & Antipov, E. V. (2001). Observation of anomalous reentrant superconductivity in Sr1-xKxBiO3 Physical Review B - Condensed Matter and Materials Physics, 64(6), 645021-645026. [064502].