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Effect of Pressure on Raman Spectra of Metastable Phases of Si and Ge
Author(s) -
Olijnyk H.,
Jephcoat A. P.
Publication year - 1999
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(199901)211:1<413::aid-pssb413>3.0.co;2-b
Subject(s) - metastability , raman spectroscopy , raman scattering , materials science , spectral line , crystallography , condensed matter physics , chemistry , optics , physics , organic chemistry , astronomy
Raman scattering of metastable phases of Si and Ge was performed in the pressure range 0 to 10 GPa. The results for Si are discussed in terms of the previously proposed BC8 and R8 structures. The first Raman spectrum of ST12‐Ge is also reported. We suggest that photochemically‐induced changes in ST12‐Ge can explain the discrepancies among previous studies on metastable Ge phases.