Elastic and Thermoelastic Properties of the Twinned Perovskite LaGaO3 and the Cubic Untwinned Perovskite La0.294Sr0.706Al0.647Ta0.353O3
Authors:
- 1 January 1991
- journal article
- research article
- Published by Wiley in Crystal Research and Technology
- Vol. 26 (4) , 481-483
Abstract
The elastic and thermoelastic constants of twinned crystals of LaGaO3 and untwinned crystals of La0.294Sr0.706Al0.647Ta0.353O3 have been measured by ultrasonic resonance methods. Both materials exhibit a quite similar elastic behaviour characteristic, as for perovskites. Employing a simple formula for ionic crystals, the elastic constants of both oxygen perovskites reveal a depression of about one third in comparison to the fluor perovskite LiBaF3.Keywords
This publication has 2 references indexed in Scilit:
- Lanthanum gallate substrates for epitaxial high-temperature superconducting thin filmsApplied Physics Letters, 1988
- Elastische und thermoelastische Konstanten des LiBaF3 / Elastic and Thermoelastic Constants of LiBaF3Zeitschrift für Naturforschung A, 1972