LONGITUDINAL ACOUSTIC ATTENUATION IN UNUSUAL 2-DIMENSIONAL SUPERCONDUCTORS

Authors
LI MR WANG YJ GONG CD WANG ZD
Citation
Mr. Li et al., LONGITUDINAL ACOUSTIC ATTENUATION IN UNUSUAL 2-DIMENSIONAL SUPERCONDUCTORS, Physica. C, Superconductivity, 264(3-4), 1996, pp. 287-294
Citations number
20
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
264
Issue
3-4
Year of publication
1996
Pages
287 - 294
Database
ISI
SICI code
0921-4534(1996)264:3-4<287:LAAIU2>2.0.ZU;2-J
Abstract
The longitudinal acoustic attenuation (LAA) in the superconducting sta te is theoretically investigated to provide a reference for experiment al determination of the pairing symmetry. For clean superconductors th e LAA is strongly anisotropic with the propagation direction of the ac oustic phonon in both the d wave and the s + id wave case. For dirty s uperconductors, the LAA obeys a power law at small omega in the d wave case, and has no discontinuous jump at omega = 2 Delta(s)(+) in the s + id wave case.