Abstract
AbstractThe Raman spectra of a single crystal of strontium barium niobate were recorded in the temperature range–193 to 140°C. The configurations studied were X(ZZ)Y, X(YZ)Y, X(YX)Y, Z(XX)Y, Z(YZ)Y and Z(XZ)Y. The behavior of integrated reduced intensities, band widths and band centers with temperature indicated that the ferro‐electric transition temperature was near 65°C. The Raman data were not consistent with a classical Landau transition. Disorder‐induced first‐order spectra were observed and attributed to the disordered nature of the crystal Evidence was found for a possible phase transition near 120°C.
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