Title of article
Isotopic disorder effect in the infrared reflection spectra of 6Lix7Li1−xY F4 single crystals
Author/Authors
Vinogradov، نويسنده , , E.A. and Yakovlev، نويسنده , , V.A. and Novikova، نويسنده , , N.N. and Popova، نويسنده , , M.N. and Saikin، نويسنده , , S.K. and Malkin، نويسنده , , B.Z.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
5
From page
256
To page
260
Abstract
Polarized infrared reflection spectra of LiY F4 single crystals with different compositions of 7Li and 6Li isotopes were measured and analysed using the model of independent oscillators. Lattice dynamics calculations were performed. It was found that, for some modes, the contribution of the isotopic disorder to the damping constant is comparable to the anharmonic width. Results of simulations agree qualitatively with the experimental data. Possible reasons for the remaining discrepancies are discussed.
Keywords
A. LiY F4 , A. Reflection spectra , A. Isotope-mixed crystals , D. Anharmonic phonon decay
Journal title
Solid State Communications
Serial Year
2007
Journal title
Solid State Communications
Record number
1791513
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