Possible Existence of a Superconducting Phase in Highly Oxygen-Deficient YBa2Cu3Oy (y<6.5)
- 1 March 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (3A) , L368
- https://doi.org/10.1143/jjap.28.l368
Abstract
YBa2Cu3O y with various values of y was successfully prepared by slow cooling in Ar gas. The phase identification by an X-ray diffractometer indicates that the orthorhombic phase extends down to about y=6.2. Measurements of the superconducting transition in terms of complex susceptibility have revealed that the superconducting phase exists even for yT c phase with a different vacancy-ordered structure in the Cul-O planes.Keywords
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