The temperature dependence, in the range 100–300 K, of the far-infrared complex dielectric response of KTaO3 is reported from measurements using dispersive Fourier transform spectroscopy and is used to calculate the frequency dependence of the mode anharmonic self-energy for a restricted frequency range.
© 1978 Optical Society of America
K. F. Pai, T. J. Parker, and R. P. Lowndes, "The temperature dependence of the dielectric response of KTaO3 by dispersive Fourier transform spectroscopy," J. Opt. Soc. Am. 68, 1322-1325 (1978)