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Sr2YRu1−uCuuO6: Evidence for SrO-Layer Superconductivity
Authors:Howard A. Blackstead  John D. Dow  Dale R. Harshman
Affiliation:1. Department of Physics, University of Notre Dame, Notre Dame, Indiana, 46556
2. Department of Physics, Arizona State University, Tempe, Arizona, 85287-1504
3. Physikon Research, Inc., P.O. Box 2421, Blaine, Washington, 98231
4. Arizona State University, Tempe, Arizona, 85287
Abstract:Sr2YRuO6 doped on its Ru site by Cu superconducts at the below ~45 K, although its Ru and Cu are magnetically ordered at ~23 K and ~86 K, respectively. The SrO layers superconduct. Ba2GdRuO6, when doped with Cu, does not superconduct, because L = 0 Gd is not crystal-field split, and so induces Cooper pair-breaking.
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