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Theory of Sound Attenuation in Glasses: The Role of Thermal Vibrations
Article
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.
DOI to cite this document: 10.5283/epub.1832
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.
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| Item type | Article | ||||
| Journal or Publication Title | Physical Review Letters | ||||
| Publisher | American Physical Society (APS) | ||||
| Open Access Type | Due to SHERPA/RoMEO | ||||
| Volume | 82 | ||||
| Number of Issue or Book Chapter | 7 | ||||
| Page Range | pp. 1478-1481 | ||||
| Date | February 1999 | ||||
| Date of publication | 05 Aug 2009 13:33 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian | ||||
| Identification Number |
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| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-18323 | ||||
| Item ID | 1832 |
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