Angular dependence of Raman scattering spectra in BaTiO₃

M. S. Jang The Institute for Solid State Physics, The University of Tokyo, Roppongi, Tokyo, 106, Japan

S. Kojima Institute of Applied Physics, University of Tsukuba, Sakura, Biihari-gun, Ibarakari, 305, Japan

T. Nakamura The Institute for Solid State Physics, The University of Tokyo, Roppongi, Tokyo, 106, Japan

M. Takashige The Institute for Solid State Physics, The University of Tokyo, Roppongi, Tokyo, 106, Japan

Abstract

The polarized Raman scattering measurements from tetragonal BaTiO₃ were made, with incident and scattered light polarized both in (x,z) scattering plane, having a crystal rotated about y-axis perpendicular to the plane. The Raman spectra were obtained at k_ik_s=150° scattering geometry. Our experimental results of angular dependence of oblique phonon frequencies were analysed by the Merten's theory.

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Angular dependence of Raman scattering spectra in BaTiO3

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Angular dependence of Raman scattering spectra in BaTiO₃