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Experimental determination of vibrational anharmonic contributions
Author(s) -
Kolesov Boris A.
Publication year - 2013
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.4409
Subject(s) - anharmonicity , raman spectroscopy , diamond , phonon , silicon , condensed matter physics , chemistry , materials science , physics , quantum mechanics , optoelectronics , organic chemistry
This article deals with the experimental determination of separate vibrational anharmonic contributions to the self‐energy of phonons in any crystals based on temperature dependence of their Raman spectra. We propose a new approach to find each anharmonic contribution by using special temperature points. We apply the approach to diamond, silicon, and crystalline α ‐S 8 and show that our results for summarized anharmonicity in diamond and silicon are in good agreement with the values obtained previously for these systems by other researchers. Copyright © 2013 John Wiley & Sons, Ltd.