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Ultrasonic attenuation in UPt/sub 3/

Journal Article · · Phys. Rev. Lett.; (United States)
We report measurements of the ultrasonic absorption in UPt/sub 3/ through the superconducting transition. The attenuation varies as T/sup 2/ at low temperatures and is inconsistent with the identification of UPt/sub 3/ as a singlet superconductor. Our results can be well explained by assum- ing that UPt/sub 3/ is an anisotropic (triplet) superconductor in a polarlike state, where the gap vanishes along a line on the Fermi surface.
Research Organization:
AT and T Bell Laboratories, Murray Hill, New Jersey 07974
OSTI ID:
6324938
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 53:10; ISSN PRLTA
Country of Publication:
United States
Language:
English