| Compression mechanisms in the anisotropically bonded elements Se and Te | |
|---|---|
| 學年 | 88 |
| 學期 | 2 |
| 出版（發表）日期 | 2000-02-01 |
| 作品名稱 | Compression mechanisms in the anisotropically bonded elements Se and Te |
| 作品名稱（其他語言） | |
| 著者 | H. C. Hsueh; C. C. Lee; C. W. Wang; J. Crain |
| 單位 | 淡江大學物理學系 |
| 出版者 | College Park: American Physical Society (APS) |
| 著錄名稱、卷期、頁數 | Physical Review B 61(6), p.3851-3856 |
| 摘要 | The compression mechanisms of the elements selenium and tellurium (which exhibit highly anisotropic bonding under ambient conditions) are explored. A combination of experiments and ab initio simulation (including generalized gradient corrections) is used to examine the structural and dynamic properties of these elements in detail. The effect of pressure on both these systems is to enhance the weak interchain bonding at the expense of the stronger intrachain covalent interactions. This is manifested by a pronounced mode softening of the intrachain vibrational modes under pressure as found from both Raman spectroscopy and simulation. A corresponding increase of the rigid-chain rotation mode is also revealed by the calculations. We also investigate pressure-induced polymorphism in these materials in order to resolve controversy concerning the high-pressure crystallographic structures. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 1098-0121 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27783 ) |
| SDGS | 優質教育 |
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