Raman spectroscopy studies on dimethyl selenium at pressures of up to 40.6gpa
文献类型：期刊论文
| 作者 | Qin, Zhenxing1; Wang, Wenhai1; Wu, Yujie2; Zhan, Xiaozhi3; Zhang, Qingmei1 |
| 刊名 | Journal of raman spectroscopy
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 49期号:4页码:728-735 |
| 关键词 | Fwhm Hydrogen-rich material Lattice modes Phase transitions Softening |
| ISSN号 | 0377-0486 |
| DOI | 10.1002/jrs.5328 |
| 通讯作者 | Zhang, qingmei(qmzhang@tyust.edu.cn) |
| 英文摘要 | The high-pressure behavior of dimethyl selenium was investigated at room temperature by raman scattering measurements with pressures up to 40.6gpa. with the first solid phase already appeared only at 0.4gpa, phase transitions at 4.4 and 26.1gpa were found and evidenced by the wavenumber shifts, pressure coefficients, and changes in full width half maximum of related modes. these phase transitions were suggested to result from the changes in the intermolecular and intramolecular bonding of the material. interestingly, it was found that deformation mode of ch3 groups exhibited a hyperactive pressure effect, yet the expected softening was never found throughout the compression, suggesting that the ch3 groups became active upon compression. more surprising, a lattice mode appeared only at 0.4gpa, which not only showed crystalline dimethyl selenium at this pressure but also provided a possibility to design the unique hydrogen bond at such low pressures. these phenomena make it possible to gain superiority for this compound to further investigate the superconductivity with high-transition temperatures of bulk hydrogen. |
| WOS关键词 | HYDROGEN-BONDED SOLIDS ; CRYSTAL-STRUCTURE ; INDUCED METALLIZATION ; INFRARED-SPECTRA ; SULFUR HYDRIDE ; AB-INITIO ; SUPERCONDUCTIVITY ; PHASE ; SULFIDE ; TRANSITION |
| WOS研究方向 | Spectroscopy |
| WOS类目 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000430468200012 |
| 出版者 | WILEY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178165 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Zhang, Qingmei |
| 作者单位 | 1.Taiyuan Univ Sci & Technol, Dept Phys, Taiyuan 030024, Shanxi, Peoples R China 2.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Zhenxing,Wang, Wenhai,Wu, Yujie,et al. Raman spectroscopy studies on dimethyl selenium at pressures of up to 40.6gpa[J]. Journal of raman spectroscopy,2018,49(4):728-735. |
| APA | Qin, Zhenxing,Wang, Wenhai,Wu, Yujie,Zhan, Xiaozhi,&Zhang, Qingmei.(2018).Raman spectroscopy studies on dimethyl selenium at pressures of up to 40.6gpa.Journal of raman spectroscopy,49(4),728-735. |
| MLA | Qin, Zhenxing,et al."Raman spectroscopy studies on dimethyl selenium at pressures of up to 40.6gpa".Journal of raman spectroscopy 49.4(2018):728-735. |
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