The Lifetime of Thermal Phonons in α-Quartz
| dc.contributor.advisor | Walton, D. | en_US |
| dc.contributor.author | Kochhar, Ashok K. | en_US |
| dc.contributor.department | Physics | en_US |
| dc.date.accessioned | 2014-06-18T16:41:01Z | |
| dc.date.available | 2014-06-18T16:41:01Z | |
| dc.date.created | 2009-07-10 | en_US |
| dc.date.issued | 1979-03 | en_US |
| dc.description.abstract | <p>The attenuation of thermal phonons and acoustically generated phonons at different power levels are compared in α-quartz. The average attenuation at 1.67 GHz at room temperature was 27.3 db/cm ± 2.7% and at a frequency of 1.856 GHz, it was 32.5 db/cm ± 2.1%. Woodruff and Ehrenreich's theory was used to calculate the lifetime of thermal phonons from acoustic attenuation data. The relaxation time for thermal phonons at 300ºK was found to be 8.34x10‾¹² sec.</p> | en_US |
| dc.description.degree | Master of Science (MS) | en_US |
| dc.identifier.other | opendissertations/317 | en_US |
| dc.identifier.other | 1297 | en_US |
| dc.identifier.other | 894215 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11375/7925 | |
| dc.subject | Physics | en_US |
| dc.subject | Physics | en_US |
| dc.title | The Lifetime of Thermal Phonons in α-Quartz | en_US |
| dc.type | thesis | en_US |
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