Powder neutron diffraction measurements were performed on the compounds Pb^Sr~Y. Ca Cu.0A+ ~ ~ A-X X (x O, 0.5) to determine the structural parameters, especially the coordi~ates and occupation of the oxygen sites. A comparison is made between the structures of the superconducting (x = 0.5) and non-
Penetration depth in Pb2Sr2Y1−xCaxCu3O8−δ single crystals
✍ Scribed by W. Korczak; Z. Korczak; A. Rysak; J.J. Capponi
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 156 KB
- Volume
- 235-240
- Category
- Article
- ISSN
- 0921-4534
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Polycrystalline Pb2Sr2Yl\_xCaxCu3Os+ 8 (PSYCCO) samples have been prepared without precursor (x=0.3-0.6). The samples exhibit a metallic normal-state conductivity, and the highest To(R=0 ) achieved is 70K. Regarding anisotropy, SQUID-magnetometry demonstrates the intermediate position of PSYCCO betw
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