Unusual resistive transitions in two-phase superconducting single crystals: BiSrCaCuO whiskers

F. Hamed; S. Gygax; A. E. Curzon

doi:10.1016/S0921-4534(97)01556-6

Unusual resistive transitions in two-phase superconducting single crystals: BiSrCaCuO whiskers

F. Hamed, S. Gygax, A. E. Curzon

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

1 Citation (Scopus)

Abstract

Silver pressure contacts were attached to very small two-phase whiskers of BiSrCaCuO and four-probe c-axis resistive transitions were measured. On cooling down, the high-T_c phase shows up as an increase in resistance followed by the usual drop to zero resistance of the dominant low-T_c phase. A model calculation, which scales the highly anisotropic whisker into an isotropic normal material with a superconducting sheet inclusion at various locations, reproduces the essential results.

Original language	English
Pages (from-to)	277-279
Number of pages	3
Journal	Physica C: Superconductivity and its Applications
Volume	293
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4534(97)01556-6
Publication status	Published - Dec 1997
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(97)01556-6

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abstract = "Silver pressure contacts were attached to very small two-phase whiskers of BiSrCaCuO and four-probe c-axis resistive transitions were measured. On cooling down, the high-Tc phase shows up as an increase in resistance followed by the usual drop to zero resistance of the dominant low-Tc phase. A model calculation, which scales the highly anisotropic whisker into an isotropic normal material with a superconducting sheet inclusion at various locations, reproduces the essential results.",

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AU - Hamed, F.

AU - Gygax, S.

AU - Curzon, A. E.

PY - 1997/12

Y1 - 1997/12

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AB - Silver pressure contacts were attached to very small two-phase whiskers of BiSrCaCuO and four-probe c-axis resistive transitions were measured. On cooling down, the high-Tc phase shows up as an increase in resistance followed by the usual drop to zero resistance of the dominant low-Tc phase. A model calculation, which scales the highly anisotropic whisker into an isotropic normal material with a superconducting sheet inclusion at various locations, reproduces the essential results.

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Unusual resistive transitions in two-phase superconducting single crystals: BiSrCaCuO whiskers

Abstract

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