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https://doi.org/10.1088/1742-6596/28/1/022
Title: | Phase transition mechanism in KIO3 single crystals | Authors: | Liu, L. Wu, R.Q. Ni, Z.H. Shen, Z.X. Feng, Y.P. |
Issue Date: | 1-Jan-2006 | Citation: | Liu, L., Wu, R.Q., Ni, Z.H., Shen, Z.X., Feng, Y.P. (2006-01-01). Phase transition mechanism in KIO3 single crystals. Journal of Physics: Conference Series 28 (1) : 105-109. ScholarBank@NUS Repository. https://doi.org/10.1088/1742-6596/28/1/022 | Abstract: | Detailed polarized Raman study was performed on KIO3 single crystals over 78.5-553K, which show a strong central component in the high temperature phase I and two soft modes S1 and S2 related to the phase transitions I-II and II-III respectively. The phonon dispersion of KIO3 in phase I was calculated, utilizing density functional perturbation theory (DFPT) and local density approximation (LDA). The KIO 3 single crystals were ascribed to improper ferroelectrics with the phase transition series from rhombohedral phase I, to monoclinic phase II, to triclinic phase III, and phase IV. © 2006 IOP Publishing Ltd. | Source Title: | Journal of Physics: Conference Series | URI: | http://scholarbank.nus.edu.sg/handle/10635/97520 | ISSN: | 17426588 | DOI: | 10.1088/1742-6596/28/1/022 |
Appears in Collections: | Staff Publications |
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