Olijnyk, H. ; Sikka, S. K. ; Holzapfel, W. B. (1984) Structural phase transitions in Si and Ge under pressures up to 50 GPa Physics Letters A, 103 (3). pp. 137-140. ISSN 0375-9601
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0375-9601(84)90219-6
Abstract
The crystal structures of Si and Ge were studied by energy dispersive X-ray diffraction at room temperature and pressures up to 50 GPa. Si transforms to a primitive hexagonal (Si-V) structure around 16 GPa, to an intermediate phase Si-VI between 35 and 40 GPa, and to hcp (Si-VII) around 40 GPa. In contrast, Ge remains in the β-tin structure up to at least 51 GPa. The pseudopotential method reproduces these differences in the high-pressure behavior of Si and Ge.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 88239 |
| Deposited On: | 27 Mar 2012 11:47 |
| Last Modified: | 27 Mar 2012 11:47 |
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