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Theory of Sound Attenuation in Glasses: The Role of Thermal Vibrations

Fabian, Jaroslav and Allen, Philip B. (1999) Theory of Sound Attenuation in Glasses: The Role of Thermal Vibrations. Physical Review Letters 82 (7), pp. 1478-1481.

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Other URL: http://link.aps.org/abstract/PRL/v82/p1478


Abstract

Sound attenuation and internal friction coefficients are calculated for a realistic model of amorphous silicon. It is found that, contrary to previous views, thermal vibrations can induce sound attenuation at ultrasonic and hypersonic frequencies that is of the same order or even larger than in crystals. The reason is the internal strain induced anomalously large Grüneisen parameters of the ...

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Item Type:Article
Date:February 1999
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Identification Number:
ValueType
10.1103/PhysRevLett.82.1478DOI
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Prof. Dr. Jaroslav Fabian
Deposited On:20 Mar 2007
Last Modified:13 Mar 2014 10:06
Item ID:1832
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