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β-tin→Imma→sh phase transitions of germanium.
- Source :
-
Physical review letters [Phys Rev Lett] 2011 Apr 01; Vol. 106 (13), pp. 135502. Date of Electronic Publication: 2011 Mar 30. - Publication Year :
- 2011
-
Abstract
- New paths were designed for the investigations of the β-tin→Imma→sh phase transitions in nanocrystalline Ge under conditions of hydrostatic stress. A second-order transition between the β-tin and Imma phases was identified at 66 GPa, and a first-order transition between the Imma and sh phases was determined at 90 GPa. Superconductivity was obtained up to 190 GPa using the acquired structural data in first-principles calculations. This provides evidence that the standard electron-phonon coupling mechanism is responsible for superconductivity in Ge, as evidenced by the good agreement between the calculations and existing experiments.<br /> (© 2011 American Physical Society)
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 106
- Issue :
- 13
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 21517394
- Full Text :
- https://doi.org/10.1103/PhysRevLett.106.135502