Low temperature,high pressure Raman study of SbSBr |
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| Authors: | Hans D Hochheimer Gerasimos A Kourouklis Takashiinushima |
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| Institution: | 1. Department of Physics , Colorado State University , Fort Collins , CO , 80523 , USA;2. Physics Division , School of Technology, University of Thessaloniki , Thessaloniki , 54006 , Greece;3. Semiconductor Energy Laboratory Co., Ltd. , 398 Hase, Atugi , Kanagawa 243, Japan |
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| Abstract: | Abstract We have measured the Raman spectra of the quasi-one-dimensional crystal SbSBr as a function of pressure at 295, 70, 37 and 25 K. The pressure coefficients of the observed Raman modes have been determined and used to distinguish inter-from intrachain modes. Spectral features characteristic of the ferroelectric phase have been attributed to impurities or lattice imperfections and not to the presence of the ferroelectric phase, providing indication that the para-to ferroelectric phase transition occurs below 25 K. |
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| Keywords: | Raman scattering low temperature high pressure SbSBr |
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