| Bi1.8Nd0.2Ti4O11的温致及压致软模相变研究 |
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| 引用本文： | 崔启良,孟进芳.Bi1.8Nd0.2Ti4O11的温致及压致软模相变研究[J].高压物理学报,1993,7(2):110-114. |
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| 作者姓名： | 崔启良 孟进芳 |
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| 作者单位： | 吉林大学超硬材料国家重点实验室，吉林大学超硬材料国家重点实验室，吉林大学超硬材料国家重点实验室，吉林大学超硬材料国家重点实验室，吉林大学超硬材料国家重点实验室 长春 130022，长春 130022，长春 130022，长春 130022，长春 130022 |
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| 基金项目： | 国家自然科学基金，博士点基金 |
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| 摘 要： | 采用背用散射的方法，测量了Bi1.8Nd0.2Ti4O11的拉曼光谱。实验结果表明，该掺杂样品发生温致和压致软模相变的温度和压力分别为200 ℃和3.35 GPa。文中讨论了相变点移动的原因及高频声子模随温度和压力的变化。
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| 关 键 词： | 高压 高温 拉曼光谱 软模相变 |
| 收稿时间： | 1992-12-01; |
PRESSURE AND TEMPERATURE-INDUCED SOFT MODE PHASE TRANSITION IN Bi_(1.8)Nd_(0.2)Ti_4O_(11) |
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| Cui Qiliang,Meng jinfang,Zou Guangtian.Zhao Yongnian,Li Dongmei.PRESSURE AND TEMPERATURE-INDUCED SOFT MODE PHASE TRANSITION IN Bi_(1.8)Nd_(0.2)Ti_4O_(11)[J].Chinese Journal of High Pressure Physics,1993,7(2):110-114. |
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| Authors: | Cui Qiliang Meng jinfang Zou GuangtianZhao Yongnian Li Dongmei |
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| Institution: | State Key Laboratory for Superhard Materials, Jilin University, Changchun 130023, China |
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| Abstract: | The Raman apectra of Bi_(1.8)Nd_(0.2)Ti_4O_(11) have been measured by backward scattering,Experimental results show that the phase transition pressure and temperature are 3.35 GPa and 200C.respectively.The cause of the shbift in the phase transition point and te variation of the high frequency phonon mode with temperature or pressure.were discussed in this paper. |
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| Keywords: | high pressure high temperature Raman spectra soft mode phase transition |
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