We have prepared polycrystalline samples of the superconducting oxides NdxY1-xBa2Cu3Oy with x=0, 0.1, 0.5, 0.9, and 1.0. A SEM investigation indicates, for neodymium containing samples, 20 micron size particles in the interior and a "basket weave" morphology on the pressed surface. EDX and x-ray diffraction reveal no indication of rare earth segregation in the alloys. The in-plane lattice constants increase by 1% with x, but ther is no variation in the orthorhombic splitting (b/a-1 = 2%). All samples have transition (50% resistance) temperatures between 91 K and 92 K.
|Number of pages||5|
|Journal||Solid State Communications|
|State||Published - Dec 1987|
Bibliographical noteFunding Information:
Acknowledgments - We appreciate very valuable discussions with Professors E. DeLong and A. Zettl, the work of Professor W. D. Ehmann and Ms. Y.-X. in the neutron activation analysis, Mr. D. K. Kim for experimental help. This work was funded in part by the National Science Foundation, Solid State Physics Grant DMH-8615463 and by the Division of Materials Sciences, U.S. Department of Energy, under Contract DE-FGOS-85ER45186.
ASJC Scopus subject areas
- Chemistry (all)
- Condensed Matter Physics
- Materials Chemistry