Multiphonon absorption in a MgO single crystal in the terahertz range
| Autor: | I. E. Spector, A. A. Volkov, Gennady A. Komandin, O. E. Porodinkov |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Solid-state physics Phonon Terahertz radiation Infrared business.industry Anharmonicity Atmospheric temperature range Condensed Matter Physics Molecular physics Spectral line Electronic Optical and Magnetic Materials Optics Condensed Matter::Superconductivity business Single crystal |
| Zdroj: | Physics of the Solid State. 51:2045-2050 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783409100096 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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