Lee, SH Jang, HM Sung, HH Yi, H 2024-01-21T10:05:09Z 2024-01-21T10:05:09Z 2021-09-01 2002-09-23 0003-6951 https://pubs.kist.re.kr/handle/201004/139202 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. English AMER INST PHYSICS FREQUENCY A(1)(TO) PHONON PBTIO3 MEMORIES ORIGIN Polarized Raman scattering of epitaxial Pb(Zr,Ti)O-3 thin films in the tetragonal-phase field Article 10.1063/1.1509859 1 APPLIED PHYSICS LETTERS, v.81, no.13, pp.2439 - 2441 APPLIED PHYSICS LETTERS 81 13 2439 2441 scie scopus 000178037600041 Physics, Applied Physics Article FREQUENCY A(1)(TO) PHONON PBTIO3 MEMORIES ORIGIN tetragonal PZT polarized Raman