The Effect of Oxygen Vacancies in Ca1−xSrxHfO3
- 1 January 2010
- journal article
- research article
- Published by Taylor & Francis Ltd in Ferroelectrics
- Vol. 396 (1), 37-48
- https://doi.org/10.1080/00150191003795130
Abstract
Samples of Ca1−xSrxHfO3 with x = 0.25, 0.50 and 0.75 have been studied. These oxides were synthesized using the high temperature solid state reaction method that can produce oxygen vacancies. The lattice and the hyperfine interaction parameters were determined. From these data it is possible correlate the behaviour of the hyperfine parameters with composition and temperature. The effect of oxygen vacancies is analyzed. The temperature dependence of hyperfine parameters display discontinuities that are interpreted as signs of crystalline phase transitions at about 900, 850 and 700 K, for x = 0.25, 0.50 and 0.75, respectively.Keywords
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