Neutron scattering study of phonons associated with indirect band-gap transition in AgBr |
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| Authors: | H. Kanzaki S. Sakuragi S. Hoshino G. Shirane Y. Fujii |
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| Affiliation: | Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan |
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| Abstract: | Phonons in AgBr are studied by neutron inelastic scattering along the [111] direction of reciprocal lattice. From the phonon dispersion and the optical data, it is concluded that the valence band maximum is at the L-point and the phonons participating in the indirect band-gap transition are identified as TO(L) and LA(L). |
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