Raman scattering study of phase transitions of Ba2NaNb5(1-x) Ta5 xO15
作者： Seiji Kojima , Shinichi Hamazaki , Masayuki Tsukioka , Masaaki Takashige
DOI: 10.1080/00150199408017636
关键词: Condensed matter physics 、 Phonon 、 Materials science 、 Nuclear magnetic resonance 、 Ferroelectricity 、 Phase transition 、 Raman spectroscopy 、 Raman scattering
摘要: Abstract The composition and temperature dependences of optical phonon modes Ba2NaNb5 (1−x) Ta5xO15 were studied by the Raman spectroscopy. ferroelectric phase transitions investigated A1(z) mode at about 278. ferroelastic B2(y) 32cm−1. As for variation room transition occurs between x=0.6 0.7, x=0.9. these temperatures also studied.
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