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Rietveld Refinement of YBa2Cu3-xNixOy Prepared by Quenching and Oxygen Gettering

Published online by Cambridge University Press:  06 March 2019

Mark A. Rodriguez ,
Michael O. Eatough  and
Francesca Licci
Mark A. Rodriguez
Affiliation:
Sandia National Laboratories Albuquerque, NM 87185
Michael O. Eatough
Affiliation:
Sandia National Laboratories Albuquerque, NM 87185
Francesca Licci
Affiliation:
Instito Materiali Speciali per Elettronica r Magnetismo del Consiglio Nazionale delle Ricerche, Via Chiavari, 18/A, I-43100 Parma, Italy
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Abstract

We have refined the structures for YBa2Cu2.94Nio.O6Oy (2% Ni) and YBa2Cu2.8ONio.20Oy (6.67% Ni) at y ∼ 6.95 and y ∼ 6.5 contents. Oxygen was reduced by two independent methods: quenching from 690 °C and oxygen gettering at 450 OC, Cu-O bond lengths were calculated based on Rietveld structure refinements for the various samples; they indicate the likely occupancy of Ni in the plane (Cu2) site of the 123 superconductor.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 39: Forty-Fourth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1995 , 1995 , pp. 607 - 614
Copyright
Copyright © International Centre for Diffraction Data 1995

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