Polarized Raman scattering of epitaxial Pb(Zr,Ti)O-3 thin films in the tetragonal-phase field
SCIE
SCOPUS
- Title
- Polarized Raman scattering of epitaxial Pb(Zr,Ti)O-3 thin films in the tetragonal-phase field
- Authors
- Lee, SH; Jang, HM; Sung, HH; Yi, H
- Date Issued
- 2002-09-23
- Publisher
- AMER INST PHYSICS
- Abstract
- In view of the difficulty in preparing single crystals, a c-axis oriented epitaxial lead zirconate titanate (PZT) film was prepared as a model system for the single-crystalline PZT. By employing an extraordinary backscattering configuration in which the relevant phonon wave vector, k, is parallel to the film/substrate interface, we have successfully isolated the E [transverse optical (TO)] symmetry phonons from A(1)(TO) phonons. Compared with polarized Raman spectra of the c-axis oriented PbTiO3 film, the polarized spectra of the epitaxial PZT film (with Zr/Ti=40/60) exhibited significant asymmetric line broadening with a noticeable downward shift of the mode frequencies. In addition to this, we observed a splitting of the "silent" mode into the B-1-symmetry mode and the E(TO) mode using the parallel and cross polarization configurations, respectively. (C) 2002 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9426
- DOI
- 10.1063/1.1509859
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 81, no. 13, page. 2439 - 2441, 2002-09-23
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