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Thermal expansion of NdGaO3 perovskite
|Anatoliy Senyshyn 3, Leonid Vasylechko 3, Carsten Bähtz 2, Ulrich Bismayer 1, A. Matkovskii 3|
1. University of Hamburg, Mineralogisch-Pertographisches Institut, Hamburg, Germany
Thermal behaviour of the NdGaO3 crystal structure has been precisely investigated by means of the high-resolution powder diffraction technique using synchrotron radiation in the wide temperature range 12-1223 K. The diffraction experiments were carried out at the powder diffractometer at B2 line (HASYLAB/DESY). It was shown that NdGaO3 possesses orthorhombically distorted GdFeO3 type of structure (sp. group Pbnm, Z=4) in the whole temperature range investigated. Temperature variations of the lattice parameters and cell volume were found to be anisotropically and nonlinearly increasing with the temperature.
Presentation: poster at E-MRS Fall Meeting 2003, Symposium B, by Anatoliy Senyshyn
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-05-10 09:39 Revised: 2009-06-08 12:55