Structural and superconducting properties of oxygen-deficient and doped YBa2Cu3O7−x
✍ Scribed by J.D. Jorgensen; D.G. Hinks; H. Shaked; B. Dabrowski; B.W. Veal; A.P. Paulikas; L.J. Nowicki; G.W. Crabtree; W.K. Kwok; A. Umezawa; L.H. Nunez; B.D. Dunlap; C.U. Segre; C.W. Kimball
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 271 KB
- Volume
- 156-157
- Category
- Article
- ISSN
- 0921-4526
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A simple technique is described for the control and determination of the oxygen stoichiometry between 6.95-5.83 of pure deoxygenated YBa2Cu307\_ ~ (YBCO). By studying samples prepared using this method, two anomalous properties, namely ( 1 ) the step-like increase of the c-axis length of the crystal
The superconducting properties of YBa2Cu307-x have been shown to depend markedly on the overall oxygen stoichiometry and on the ordering of oxygen vacancies on the available sites. YBa2Cu307\_ x has been studied in situ by high-temperature neutron powder diffraction in controlled oxygen atmospheres