ANOMALOUS RE-ENTRANT SUPERCONDUCTIVITY IN Sr0.4K0.6BiO3: RECOVERY OF SUPERCONDUCTIVITY WITH ELECTRIC AND MAGNETIC FIELD-Reference-Cited by-同舟云学术

ANOMALOUS RE-ENTRANT SUPERCONDUCTIVITY IN Sr0.4K0.6BiO3: RECOVERY OF SUPERCONDUCTIVITY WITH ELECTRIC AND MAGNETIC FIELD

Published:2002-08-30 Issue:20n22 Volume:16 Page:3189-3192
ISSN:0217-9792
Container-title:International Journal of Modern Physics B
language:en
Short-container-title:Int. J. Mod. Phys. B

Author:

KIM D. C.¹,KIM J. S.¹,BARANOV A. N.¹,PARK Y. W.¹,PSHIRKOV J. S.²,ANTIPOV E. V.²

Affiliation:

1. School of Physics and Condensed Matter Research Institute, Seoul National University, Seoul, 151-747, Korea

2. Department of Chemistry, Moscow State University, Moscow 119899, Russia

Abstract

Anomalous re-entrant superconducting-normal resistive transition was observed in Sr 0.4 K 0.6 BiO 3 superconductor i.e., normal – supernormal behavior as temperature is increased. Contrary to previously reported re-entrant resistive behaviors in other compounds, the re-entrant resistivity appearing at zero magnetic field in Sr 0.4 K 0.6 BiO 3 is suppressed to zero by applying an external magnetic field (H) or increasing the electrical transport current (I): an observation of a zero resistive superconducting state induced by H or I. Comparisons of the normal-state resistivity data in different samples indicate an important role that disorder in the junction barriers between superconducting grains might play on the observed re-entrant resistivity behavior. Possible physical origins of this anomalous phenomenon are discussed.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217979202013900

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