Multiphonon absorption in a MgO single crystal in the terahertz range
- 13 October 2009
- journal article
- Published by Pleiades Publishing Ltd in Physics of the Solid State
- Vol. 51 (10) , 2045-2050
Abstract
The reflection and transmission spectra of a MgO single crystal at frequencies of 10–1000 cm−1 in the temperature range 10–300 K have been measured using submillimeter and infrared Fourier spectros-copy. The evolution of anharmonic absorption with variations in temperature has been investigated in the frequency range below the frequency of the transverse optical phonon. The parameters of the dispersion model that adequately describes the lattice absorption of terahertz radiation in single-crystal magnesium oxide have been determined.Keywords
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