Non-s-wave behavior of c-axis aligned Pr{sub 1.85}Ce{sub 0.15}CuO{sub 3.97} superconducting powder
The tetragonal c-axis alignment of T{sub c}=23K Pr{sub 1.85}Ce{sub 0.15}CuO{sub 3.97} 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 {lambda}{sub ab} for this electron-doped superconductor was derived using zero-field-cooled Meissner diamagnetic data with low applied field (B{sub a}{lt}H{sub c1}{sup ab}) parallel to the c-axis aligned powder. A small Pr paramagnetic contribution was subtracted. The temperature dependence of {Delta}{lambda}{sub ab}(T)={lambda}{sub ab}(T){minus}{lambda}{sub ab}(0) [with {lambda}{sub ab}(0){similar_to}133nm] up to {similar_to}0.5 T{sub c} can be fitted well with a non-s-wave or d-wave-like power law {Delta}{lambda}{sub ab}(T)=AT{sup 2}+CT{sup 4}, where the T{sup 2} 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. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204153
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 89; ISSN 0021-8979
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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