Pressure-Induced Structure Phase Transitions of Sr2Bi4Ti5O18

HAN Jie; ZOU Guang-Tian; CUI Tian; LIU Bing-Bing; PAN Yao-Wu; GAO Chun-Xiao; YANG Hai-Bin

doi:10.11858/gywlxb.1998.03.012

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Chinese Journal of High Pressure Physics > 1998 > 12(3): 233-235 .

HAN Jie, ZOU Guang-Tian, CUI Tian, LIU Bing-Bing, PAN Yao-Wu, GAO Chun-Xiao, YANG Hai-Bin. Pressure-Induced Structure Phase Transitions of Sr2Bi4Ti5O18[J]. Chinese Journal of High Pressure Physics, 1998, 12(3): 233-235 . doi: 10.11858/gywlxb.1998.03.012

Citation:

HAN Jie, ZOU Guang-Tian, CUI Tian, LIU Bing-Bing, PAN Yao-Wu, GAO Chun-Xiao, YANG Hai-Bin. Pressure-Induced Structure Phase Transitions of Sr2Bi4Ti5O18[J]. Chinese Journal of High Pressure Physics, 1998, 12(3): 233-235 . doi: 10.11858/gywlxb.1998.03.012

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Pressure-Induced Structure Phase Transitions of Sr2Bi4Ti5O18

doi: 10.11858/gywlxb.1998.03.012

State Key Laboratory of Superhard Materials, Jilin University, Changchun 130023, China

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Corresponding author: HAN Jie
Received Date: 18 Dec 1997
Rev Recd Date: 18 Dec 1997
Publish Date: 05 Sep 1998

Abstract

Abstract

The in situ high pressure Raman spectra and the pressure-induced structure phase transitions of layered ferroelectrics Sr2Bi4Ti5O18 have been studied in the range of 0~27 GPa with diamond anvil cell (DAC), using methanol-ethanol (4:1) mixture as transmission medium. We assigned the internal modes of Sr2Bi4Ti5O18 according to internal mode approach. It is found Sr2Bi4Ti5O18 experienced a structure phase transition at 8.31 GPa. Over 23.13 GPa, Sr2Bi4Ti5O18 displayed a clear indication of amorphous phase transition.
- layered ferroelectrics,
- Sr2Bi4Ti5O18,
- high pressure,
- DAC