Narayanamurti, V. ; Dynes, R. C. (1972) Phonon fluorescence in superconductors Journal de Physique. Colloques, 33 (C4). C4-11 . ISSN 0449-1947
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Official URL: http://jphyscol.journaldephysique.org/index.php?op...
Related URL: http://dx.doi.org/10.1051/jphyscol:1972403
Abstract
The propagation and attenuation of heat pulses in superconductors is described. The discontinuous change in phonon lifetime when hω = 2 Δ, the superconducting energy gap, is utilized to convert a pulse of heat into a spectrum with a large density of phonons at a frequency ω = 2 Δ/h. This frequency can be tuned with a magnetic field (which changes 2 Δ) and is used for phonon propagation spectroscopy in Ge : Sb and Al2O3 : V3+.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to EDP Sciences. |
| ID Code: | 87493 |
| Deposited On: | 19 Mar 2012 06:51 |
| Last Modified: | 19 Mar 2012 06:51 |
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