Abstract (EN):
Polarized Raman spectra of tetragonally distorted (Ba1-xSrx)TiO3/MgO ferroelectric films were obtained in special scattering geometries using a micro-Raman set-up. The underdamped E(TO) soft mode was unambiguously observed in the films with x = 0.30 and 0.45. The low-temperature behaviour of the E(TO) soft mode for x = 0.45 was found substantially different from those observed in pure crystals and bulk solid solutions.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
6
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