Difference Raman spectra of PbTiO3 thin films grown by metalorganic chemical vapor deposition
- 25 January 1993
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 62 (4), 349-351
- https://doi.org/10.1063/1.108954
Abstract
The technique of Raman scattering has been used to investigate the properties of ferroelectric PbTiO3 thin films grown on both single‐crystal KTaO3 and fused quartz substrates by means of metalorganic chemical vapor deposition. The ‘‘difference Raman’’ technique was employed in which substrate contributions were subtracted in order to obtain Raman spectra for the PbTiO3 films. A comparison of the Raman spectra taken at 300 and 80 K for PbTiO3 and KTaO3 reveals two different types of temperature behavior and these effects are accounted for by the soft‐mode theory.Keywords
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