Observation of a Collective Mode in Superconducting U
Open Access
- 25 November 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (22), 2479-2482
- https://doi.org/10.1103/physrevlett.55.2479
Abstract
Sound propagation in the heavy-fermion superconductor U is studied at frequencies from 0.9 to 2.4 GHz and temperatures from 0.01 to 100 K. A peak in the acoustic attenuation is observed below the superconducting transition of 0.9 K, instead of the rapid drop expected for a BCS superconductor. Absorption into a collective mode of a nonsinglet, anisotropic superconductor is proposed.
Keywords
This publication has 16 references indexed in Scilit:
- Heavy fermions in Kondo lattice compounds (invited)Journal of Applied Physics, 1985
- Transport and magnetic measurements on UPt3Journal of Applied Physics, 1985
- Heavy fermion superconductivityPhysica B+C, 1984
- Nuclear Magnetic Resonance and Heavy-Fermion Superconductivity in (, Th)Physical Review Letters, 1984
- Heavy-fermion systemsReviews of Modern Physics, 1984
- Ultrasonic Attenuation in UPPhysical Review Letters, 1984
- -Wave Superconductivity in UPhysical Review Letters, 1984
- Chapter 3 Sound Propagation and Kinetic Coefficients in Superfluid 3HePublished by Elsevier ,1978
- Static Nuclear Magnetism in Extraordinary LiquidPhysical Review Letters, 1973
- Attenuation of Zero Sound and the Low-Temperature Transitions in LiquidPhysical Review Letters, 1973