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- Title
Raman scattering in germanium at high pressure: isotope effects.
- Authors
Timofeev, Yu. A.; Vinogradov, B. V.; Stishov, S. M.
- Abstract
The first-order Raman scattering in isotopically enriched samples of germanium [sup 70]Ge, [sup 72]Ge, and [sup 74]Ge and germanium with the natural isotopic composition is investigated at high pressures. It is found that the isotopic dependence of the frequency of the L TO(Γ) mode in isotopically pure germanium samples can be described in the harmonic approximation (ν ∞ m[sup -1/2]). At the same time, the frequency of the L TO(Γ) mode of germanium of natural isotopic composition apparently contains a contribution due to isotopic disorder effects.
- Subjects
GERMANIUM; RAMAN effect; ISOTOPES
- Publication
JETP Letters, 1999, Vol 69, Issue 3, p227
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.568010