Behavior of low frequency a 1 polariton in PbTiO 3 : A temporal domain study

1 January 1992

journal article
Published by Taylor & Francis in Ferroelectrics

Vol. 125 (1) , 511-516
https://doi.org/10.1080/00150199208017120

Abstract

We present a time resolved nonlinear study of polariton intensity as a function of the wave vector value in PbTiO₃ We show that the contribution from the displacive and the electronic terms are of opposite sign, and that the nonlinear response is primarily of electronic origin.

Keywords

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