| 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) | C2-1019 - C2-1020 | |
| DOI | https://doi.org/10.1051/jp4:19972124 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-1019-C2-1020
DOI: 10.1051/jp4:19972124
1 Fachbereich Physik, Universität-GH Paderborn, 33095 Paderborn, Germany
2 Racah Institut of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
3 LIESG, ENSEEG, BP. 75, 38402 Saint Martin d'Hères, France
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-1019-C2-1020
DOI: 10.1051/jp4:19972124
(Tb, Ce)-LIII XAS High Pressure Study of Tetravalent BaTbO3 and SrCeO3
J. Dumschat1, R. Lübbers1, I. Felner2, G. Lucazeau3 and G. Wortmann11 Fachbereich Physik, Universität-GH Paderborn, 33095 Paderborn, Germany
2 Racah Institut of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
3 LIESG, ENSEEG, BP. 75, 38402 Saint Martin d'Hères, France
Abstract
We have studied the Tb- and Ce-LIII XAS of distorted-perovskite type BaTbO3 and SrCeO3 at pressure up to 20 GPa using a diamond anvil cell. While the XANES spectra of both tetravalent systems monitor an increase of hybridization and crystalfield splitting with pressure, the EXAFS spectra indicate an approach towards an undistorted perovskite structure with pressure.
© EDP Sciences 1997