Open AccessTHE INFRARED DIVERGENCE RESPONSE OF STRUCTURAL RELAXATION IN GLASSES
Author(s) -
Fan Xi-Qing,
Guoliang Wang,
Liu Fu-Sui
Publication year - 1986
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.35.896
Subject(s) - materials science , infrared , divergence (linguistics) , relaxation (psychology) , ultrasonic sensor , absorption (acoustics) , range (aeronautics) , atmospheric temperature range , thermodynamics , condensed matter physics , optics , physics , acoustics , composite material , psychology , social psychology , philosophy , linguistics
The infrared divergence response theory is applied to the two-level System model of structural defects in glasses, and the twopeak structure of the ultrasonic absorption is explained by this theory. It is reasoned out that the small low-temperature peak depends more strongly on frequency than that of the high-temperature peak. On the basis of indroducing the effective potential, a good agreement with experimental data for ultrasonic aibsorption in SiO2 is attained over the whole temperature range.