Resonant Raman scattering at the indirect triplet exciton in AgBr in high magnetic fields
- 20 February 1983
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 16 (5) , 955-962
- https://doi.org/10.1088/0022-3719/16/5/022
Abstract
Resonant two-phonon Raman scattering involving the indirect triplet exciton as an intermediate state is studied in AgBr at T=2K and magnetic fields up to 20T. The symmetry of the hole state is found to be L4,5-. From a quantitative analysis of the scattered 2TO(L) intensity as function of magnetic field and at different excitation photon energies the authors were able to determine the exchange splitting Delta =0.17 meV and effective g values of gc=1.46 and gvh=2.61 for electrons and holes, respectively. The observed diamagnetic shift leads to a value of 32 meV for the indirect exciton binding energy.Keywords
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