Vibrational Modes in ZnSi
- 15 August 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 2 (4) , 960-966
- https://doi.org/10.1103/physrevb.2.960
Abstract
The optical-phonon spectrum of ZnSi has been investigated by polarized Raman scattering at 6328 Å. The results are compared with phonon modes in related tetrahedrally coordinated compounds and with a set of symmetry coordinates. The low-frequency dielectric constants are estimated from the Lyddane-Sachs-Teller (LST) relation and measured refractive indices. Exciton-phonon coupling in ZnSi is discussed briefly in connection with recent luminescence measurements.
Keywords
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