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On the problem of Fe-substitution in YBa2Cu3O7-δ: a neutron powder diffraction study
- Source :
- Zeitschrift für Physik B Condensed Matter; June 1989, Vol. 76 Issue: 2 p153-158, 6p
- Publication Year :
- 1989
-
Abstract
- Neutron powder diffraction study of YBa<subscript>2</subscript>(Cu<subscript>1</subscript>-xFe<subscript>x</subscript>)<subscript>3</subscript>O<subscript>7-d</subscript> was carried out for a series of samples with 0.005?x?0.12. The results obtained suggest that Fe substitutes for Cu at both, Cu1 and Cu2 sites with equal probabilities. There is a significant number (9%) of vacancies at the Cu1 site. This number is decreasing with an increasing concentration of Fe in a specimen. The oxygen content does not vary forx<0.08, but increases to about 7.06 for 12% Fe. There is a very low probability that Fe substitutes for Ba.
Details
- Language :
- English
- ISSN :
- 07223277 and 1431584X
- Volume :
- 76
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- Zeitschrift für Physik B Condensed Matter
- Publication Type :
- Periodical
- Accession number :
- ejs16156875
- Full Text :
- https://doi.org/10.1007/BF01312678