Soft-mode spectroscopy in cubic BaTiO3by hyper-Raman scattering
نویسندگان
چکیده
منابع مشابه
Silent soft mode in hexagonal barium titanate observed by hyper-Raman scattering.
In a recent paper' Inoue et al. discussed a soft optical phonon that drives the second-order phase transition from hexagonal BaTi03, space group P63/mme (D6t, ), to a lower-symmetry structure at T, =222 K. The new phase is not ferroelectric and its structure is not known. The soft mode is Raman and infrared inactive and therefore is a so-called "silent" mode. Using hyper-Raman scattering, Inoue...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1982
ISSN: 0163-1829
DOI: 10.1103/physrevb.26.5904