Upper critical field in Ba1-xKxBiO3: Magnetotransport vs. magnetotunneling

P. Samuely; P. Szabó; T. Klein; A. G.M. Jansen; J. Marcus; C. Escribe-Filippini; P. Wyder

doi:10.1209/epl/i1998-00132-1

Upper critical field in Ba_1-xK_xBiO₃: Magnetotransport vs. magnetotunneling

P. Samuely
, P. Szabó
, T. Klein
, A. G.M. Jansen
, J. Marcus
, C. Escribe-Filippini
, P. Wyder

SAS
Institute of Experimental Physics Slovak Academy of Sciences
CNRS
Institut NÉEL
Lab. d'Etud. Proprietes Electron. S.

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

30 Citations (Scopus)

Abstract

Elastic tunneling is used as a powerful direct tool to determine the upper critical field H_c2(T) in the high-T_c oxide Ba_1-xK_xBiO₃. The temperature dependence of H_c2 inferred from the tunneling follows the Werthamer-Helfand-Hohenberg prediction for type-II superconductors. A comparison will be made with resistively determined critical-field data.

Original language	English
Pages (from-to)	207-212
Number of pages	6
Journal	Europhysics Letters
Volume	41
Issue number	2
DOIs	https://doi.org/10.1209/epl/i1998-00132-1
Publication status	Published - 15 Jan 1998
Externally published	Yes

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10.1209/epl/i1998-00132-1

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title = "Upper critical field in Ba1-xKxBiO3: Magnetotransport vs. magnetotunneling",

abstract = "Elastic tunneling is used as a powerful direct tool to determine the upper critical field Hc2(T) in the high-Tc oxide Ba1-xKxBiO3. The temperature dependence of Hc2 inferred from the tunneling follows the Werthamer-Helfand-Hohenberg prediction for type-II superconductors. A comparison will be made with resistively determined critical-field data.",

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AU - Samuely, P.

AU - Szabó, P.

AU - Klein, T.

AU - Jansen, A. G.M.

AU - Marcus, J.

AU - Escribe-Filippini, C.

AU - Wyder, P.

PY - 1998/1/15

Y1 - 1998/1/15

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AB - Elastic tunneling is used as a powerful direct tool to determine the upper critical field Hc2(T) in the high-Tc oxide Ba1-xKxBiO3. The temperature dependence of Hc2 inferred from the tunneling follows the Werthamer-Helfand-Hohenberg prediction for type-II superconductors. A comparison will be made with resistively determined critical-field data.

U2 - 10.1209/epl/i1998-00132-1

DO - 10.1209/epl/i1998-00132-1

M3 - Article

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EP - 212

JO - Europhysics Letters

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IS - 2

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Upper critical field in Ba1-xKxBiO3: Magnetotransport vs. magnetotunneling

Abstract

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Upper critical field in Ba_1-xK_xBiO₃: Magnetotransport vs. magnetotunneling