Calculations on two phonon bound states in diamond and germanium
β Scribed by C.H. Wu; J.L. Birman
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 357 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0022-3697
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π SIMILAR VOLUMES
The Raman spectra of the bound states a, and 0of the Fermi diad w,:202 in crystalline COz have been measured at several temperatures under very high resolution. Band profiles have been determined for each of the two factor group components, one A, and one F,, of the two states. The evolution with t
We study the unique bound state which (-d2/dx2) + hV and -A + XV (in two dimensions) have when A is small and V is suitable. Our main results give necessary and sufficient conditions for there to be a bound state when h is small and we prove analyticity (resp. nonanalyticity) of the energy eigenvalu