Open AccessTHE LATTICE VIBRATION OF MX COMPOUNDS
Author(s) -
Jianhua Wei,
Shijie Xie,
Mei Liang-Mo
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.2027
Subject(s) - lattice vibration , phonon , raman spectroscopy , vibration , lattice (music) , physics , condensed matter physics , spectral line , infrared , absorption spectroscopy , atomic physics , molecular physics , materials science , optics , quantum mechanics , acoustics
In our calculations of lattice vibration, one acoustic and three optical branche s were found to compose the phonon vibrating spectrum. Some isolated modes with frequencies lying outside the continuum branches aise under the defect states. These localized modes result in the sharp peaks in the infrared absorption and Raman spectra.