Orthorhombicity and oxygen uptake by YBa2Cu3O6 + x
- 1 January 1989
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 50 (12), 1455-1461
- https://doi.org/10.1051/jphys:0198900500120145500
Abstract
We have measured, at different oxygen contents, the cell parameters of YBa2Cu3O6+x between 24 and 260 K using cold neutrons. The results of profile refinement of our high resolution data is shown in figure 1 ; it does not confirm the X-ray finding, recently reported [1], showing a cusp in the orthorhombic splitting b — a, around the superconducting transition temperature. It has also been evidenced that the volume of the crystallographic cell is contracted by oxygen uptakeKeywords
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