| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-1077 - C2-1079 | |
| DOI | https://doi.org/10.1051/jp4:19972141 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-1077-C2-1079
DOI: 10.1051/jp4:19972141
1 Swiss Light Source Project, P. Scherrer Institute, 5232 Villigen PSI, Switzerland
2 Chemistry Division, Argonne National Laboratory IL 60439 Argonne, U.S.A.
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-1077-C2-1079
DOI: 10.1051/jp4:19972141
Oxidation State of the Unusual Rare Earth (R= Ce, Pr and Tb) in Double-Layer High-Tc Superconductors
U. Staub1, L. Soderholm2, S. Skanthakumar2 and M.R. Antonio21 Swiss Light Source Project, P. Scherrer Institute, 5232 Villigen PSI, Switzerland
2 Chemistry Division, Argonne National Laboratory IL 60439 Argonne, U.S.A.
Abstract
X-ray absorption and magnetization experiments are used to describe the oxidation states of the rare earth ions R=Ce, Pr and Tb in the double layer high-Tc superconducting series RBa2Cu3O7 and Pb2Sr2R1-xCaxCu3O8. We obtained the same oxidation states for the rare earths in these two classes of compounds, namely, R=Ce tetravalent and R=Pr and Tb trivalent.
© EDP Sciences 1997