| 题名 | Infrared evidence for pressure-induced phase transition of alpha-Si3N4 |
| 作者 | |
| 通讯作者 | Liu, Ke |
| 发表日期 | 2019-03-20
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| DOI | |
| 发表期刊 | |
| ISSN | 0217-9792
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| EISSN | 1793-6578
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| 卷号 | 33期号:7 |
| 摘要 | X-ray diffraction (XRD) method and structural refinement were used to characterize the sample of alpha-Si3N4. Rietveld analyses of XRD data confirmed that the sample belongs to hexagonal crystal (space group of P31c, No:159). The refined structural parameters are in agreement with the available theoretical and synchrotron radiation experimental results. Then, the infrared (IR) spectra of alpha-Si3N4 under 22 GPa were investigated with the diamond anvil cell (DAC). According to the IR absorption spectra at 296.3 K and 2 hPa (Observation range from 400 cm to 12,500 cm(-1)) we observed 23 IR active peaks. Normalized Fourier transform infrared (FTIR) absorption spectra under high pressure and room-temperature (296.3 K) show that alpha-Si3N4 undergoes a phase transition at 16.3 GPa and changes from hexagonal to cubic phase, namely, gamma-Si3N4, which is very close to the result of our theoretical calculations, i.e., the phase transition pressure is 16.3 GPa. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 其他
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| 资助项目 | Postgraduate Excellent Paper Nurturing Fund of Sichuan Normal University[43]
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| WOS研究方向 | Physics
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| WOS类目 | Physics, Applied
; Physics, Condensed Matter
; Physics, Mathematical
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| WOS记录号 | WOS:000462185800010
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| 出版者 | |
| ESI学科分类 | PHYSICS
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| 来源库 | Web of Science
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| 引用统计 |
被引频次[WOS]：0
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/26231 |
| 专题 | 理学院_物理系 |
| 作者单位 | 1.Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610101, Sichuan, Peoples R China 2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 3.Univ Elect Sci & Technol, Sch Microelect & Solid State Elect, Chengdu 610054, Sichuan, Peoples R China |
| 第一作者单位 | 物理系 |
| 推荐引用方式 GB/T 7714 |
Lei, Jin-Qiao,Luo, Yan,Chen, Hong-Jie,et al. Infrared evidence for pressure-induced phase transition of alpha-Si3N4[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2019,33(7).
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| APA |
Lei, Jin-Qiao,Luo, Yan,Chen, Hong-Jie,Wang, Shan-Min,Liu, Ke,&Zhou, Xiao-Lin.(2019).Infrared evidence for pressure-induced phase transition of alpha-Si3N4.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,33(7).
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| MLA |
Lei, Jin-Qiao,et al."Infrared evidence for pressure-induced phase transition of alpha-Si3N4".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 33.7(2019).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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