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Anharmonic Decay of Zone-Boundary Phonons Observed by a New Method of Phonon Detection

Lengfellner, Hans and Renk, Karl Friedrich (1981) Anharmonic Decay of Zone-Boundary Phonons Observed by a New Method of Phonon Detection. Physical review letters 46 (18), pp. 1210-1212.

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Abstract

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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Item type:Article
Date:1981
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Hans Lengfellner
Identification Number:
ValueType
10.1103/PhysRevLett.46.1210DOI
Classification:
NotationType
66.70.+fPACS
78.30.-jPACS
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:18612
Owner only: item control page

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