Wyatt, A.F.G. and Lockerbie, N.A. and Sherlock, R.A. (1989) Propagating phonons in liquid 4He. Journal of Physics: Condensed Matter, 1 (22). pp. 3507-3522. ISSN 0953-8984
Full text not available in this repository. (Request a copy from the Strathclyde author)Official URL: http://dx.doi.org/10.1088/0953-8984/1/22/010
Abstract
at T approximately=0.1 K is studied as a function of pressure input power and propagation distance. Using a superconducting tunnel junction detector it is found that a single injected pulse can form two propagating pulses at low pressures but only one at high pressures. It is shown that three-phonon scattering can explain this behaviour. At low pressures, one group of phonons propagates ballistically while another group consists of strongly interacting phonons which travel at the ultrasonic velocity.
| Item type: | Article |
|---|---|
| ID code: | 17757 |
| Keywords: | quantum gases, liquids, solids, condensed matter, structural, mechanical, thermal, Physics |
| Subjects: | Science > Physics |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Strathprints Administrator |
| Date Deposited: | 17 May 2010 11:40 |
| Last modified: | 12 Mar 2012 11:08 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/17757 |
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