Evidence of d-wave behavior in Pr1.85Ce0.15CuO3.97 aligned superconductors

Evidence of d-wave behavior in Pr1.85Ce0.15CuO3.97 aligned superconductors

The c-axis and in-plane alignment of 23 K Pr1.85Ce0.15CuO3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth and c-axis Josephson penetration depth were derived...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2001-11, Vol.364-365, p.285-288
Hauptverfasser: Ku, H.C, Hsu, Y.Y, Chang, B.C, Lin, B.N, Chiang, H.C, Yang, T.J
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Sprache:eng
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Zusammenfassung:The c-axis and in-plane alignment of 23 K Pr1.85Ce0.15CuO3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth and c-axis Josephson penetration depth were derived using zero-field-cooled diamagnetic susceptibility in a low applied field parallel or perpendicular to the aligned powder where small Pr Curie-Weiss paramagnetic susceptibility was subtracted. Result agrees with recent phase-sensitive experiment, which indicates d-wave nature for electron-doped R1.85Ce0.15CuO4-d (R=Pr, Nd) cuprates. 12 refs.
ISSN:0921-4534
DOI:10.1016/S0921-4534(01)00773-0