Non-s-wave behavior of c-axis aligned Pr1.85Ce0.15CuO3.97 superconducting powder

H. C. Chiang, Y. Y. Hsu, B. C. Chang, B. N. Lin, T. I. Hsu, H. C. Ku*


研究成果: 雜誌貢獻會議論文同行評審

4 引文 斯高帕斯(Scopus)


The tetragonal c-axis alignment of Tc=23 K Pr1.85Ce0.15CuO3.97 superconducting powder was achieved in a 1 T alignment field with rotating powder/epoxy holder perpendicular to the alignment field. The in-plane penetration depth λab for this electron-doped superconductor was derived using zero-field-cooled Meissner diamagnetic data with low applied field (Ba<Habcl) parallel to the c-axis aligned powder. A small Pr paramagnetic contribution was subtracted. The temperature dependence of Δλab(T) = λab(T) - λab(0) [with λab(0) ∼ 133 nm] up to ∼0.5 Tc can be fitted well with a non-s-wave or d-wave-like power law Δλab(T) = AT2 + CT4, where the T2 law is dominated at low temperature. The present result agrees with recent phase-sensitive experiment, which indicates d-wave nature for these electron-doped 214 cuprates.

頁(從 - 到)7660-7662
期刊Journal of Applied Physics
發行號11 II
出版狀態已發佈 - 2001 6月 1
事件8th Joint Magnetism and Magnetic Materials-Intermag Conference - San Antonio, TX, 美国
持續時間: 2001 1月 72001 1月 11

ASJC Scopus subject areas

  • 物理與天文學 (全部)


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