| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-2213 - C8-2214 | |
| DOI | https://doi.org/10.1051/jphyscol:19888994 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-2213-C8-2214
DOI: 10.1051/jphyscol:19888994
1 Dept. of Physics, University of Manitoba, Winnipeg, Canada R3T 2N2
2 Dept. of Geological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2
J. Phys. Colloques 49 (1988) C8-2213-C8-2214
DOI: 10.1051/jphyscol:19888994
CONVERSION-ELECTRON AND TRANSMISSION MÖSSBAUER STUDY OF YBa2 (Cul-xFex)3 O7-δ
X. Z. Zhou1, A. H. Morrish1, Q. A. Pankhurst1 et M. Raudsepp21 Dept. of Physics, University of Manitoba, Winnipeg, Canada R3T 2N2
2 Dept. of Geological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2
Abstract
The surface and bulk properties of the high-temperature superconductor YBa2 (Cu1-xFex)3 O7-δ were compared by means of conversion-electron and transmission 57Fe Mössbauer spectroscopy at room temperature. A model, based on the crystal structure and an enhanced oxygen content at the grain surfaces, is proposed.