Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9346
Title: Temperature and pressure dependence of the Raman intensity and frequency of a soft mode near the tricritical point in the ferroelectric SbSI
Authors: Yurtseven, Hasan Hamit
Duman, Sinem
Keywords: Raman intensity and frequency
Soft model
Tricritical point
Ferroelectric SbSI
Publisher: Taylor & Francis
Abstract: We analyze the pressure dependence of the intensity and the frequency of a soft mode from the Raman and elastic light scattering experiments as reported in the literature close to the ferroelectric - paraelectric transition in SbSI crystal. The Raman intensity of this mode is analyzed as a function of pressure at constant temperatures of 272K (first order transition) and 234K (tricritical or second order transition) according to a power-law formula. Our analysis of the Raman intensity gives closely the mean field values for the order parameter. From our analysis, we also obtain that the Raman frequency (squared) of the soft mode varies linearly with the pressure at constant temperatures close to the ferroelectric - paraelectric transition in SbSI as obtained experimentally.
URI: https://doi.org/10.1080/00150193.2016.1229527
https://hdl.handle.net/11147/9346
ISSN: 0015-0193
1563-5112
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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