Far-infrared laser spectroscopy of phonon difference band absorption in TlCl |
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| Authors: | H. Lengfellner R. Rindt K. F. Renk |
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| Affiliation: | (1) Institut für Angewandte Physik, Universität Regensburg, Universitätsstraße 31, D-8400 Regensburg, Germany |
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| Abstract: | Far-infrared laser radiation is used to study the lattice absorption of a TlCl crystal over a large temperature range. We found a strong absorption band caused by phonon difference processes where longitudinal and transverse acoustic phonons with wave vectors at the Brillouin zone boundary are involved. |
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