Landau-Khalatnikov Damping of Ultrasound in Heavy-Fermion Superconductors
K. Miyake, C. M. Varma
DOI 10.1103/PhysRevLett.57.1627 · Physical Review Letters
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Abstract
The Landau-Khalatnikov mechanism associated with the relaxation of the order-parameter amplitude gives a peak in the longitudinal ultrasonic attenuation α near Tc, which quantitatively accounts for the observed peak in UBe13 and UPt3. At lower temperatures this mechanism gives a power-law attenuation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.86 | Pressure not reported | unknown |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.46 | Pressure not reported | unknown |
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