Sound attenuation in the superconducting amorphous alloy ZrTiCuNiBe
Abstract
The superconducting energy gap and the parameter η determining the intensity of electron scattering at two-level systems in amorphous ZrTiCuNiBe are determined from the results of measurements of sound attenuation. The mechanism of adiabatic renormalization of the amplitude of coherent tunneling is used for a quantitative description of the peculiarities of sound absorption in the vicinity of Tc.
- Publication:
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Low Temperature Physics
- Pub Date:
- December 1999
- DOI:
- arXiv:
- arXiv:cond-mat/9911038
- Bibcode:
- 1999LTP....25..999B
- Keywords:
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- Condensed Matter
- E-Print:
- 4 pages, LaTeX, 2 Postscript figures corrected, submitted to Low Temp. Phys