Deutsch
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 low-frequency resonant modes.
| Item Type: | Article | ||||
|---|---|---|---|---|---|
| Institutions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian | ||||
| Identification Number: |
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| 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: | 20 Jul 2011 23:03 | ||||
| Item ID: | 1832 |
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