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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-186124
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.18612
Alternative Links zum Volltext:DOI
Zusammenfassung
A new method for detection of zone-boundary phonons is presented. Phonons generated by nonradiative transitions in thallium halide crystals are detected by phonon difference absorption with use of time-resolved far-infrared laser spectroscopy. Our experiments, performed at crystal temperatures between 3 and 20 K, give experimental evidence of strongly-temperature-dependent anharmonic lifetimes of transverse-acoustic zone-boundary phonons.
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