Haavasoja, T. ; Narayanamurti, V. ; Chin, M. A. (1983) Propagation of near-zone-boundary, acoustic phonons in solid 4He with the use of superconducting tunnel junctions Physical Review B, 27 (5). pp. 2767-2769. ISSN 0163-1829
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Official URL: http://link.aps.org/doi/10.1103/PhysRevB.27.2767
Related URL: http://dx.doi.org/10.1103/PhysRevB.27.2767
Abstract
We demonstrate the long lifetime, against spontaneous decay (hω>>kT), of transverse phonons in the highly anharmonic solid 4He. This is proved through the quantum generation and detection of the propagating phonons using superconducting tunnel junctions of Sn and Al. Phonons of wavelength 10-20 Å are shown to propagate macroscopic distances ~1 mm at T≤0.2 K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 30651 |
| Deposited On: | 23 Dec 2010 12:58 |
| Last Modified: | 11 Jun 2011 08:05 |
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