Origin of the longitudinal-ultrasonic-attenuation peak in heavy-fermion superconductors

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.40.715· OSTI ID:5953556

Coffey, L

Longitudinal-ultrasonic-attenuation /alpha/(/ital T/) in the stronglycorrelated heavy-fermion superconductors UBe/sub 13/ andUPt/sub 3/ shows an unusual peak below the superconducting transitiontemperature /ital T//sub /ital c//. This feature can arise from a purely normal-stateproperty, namely the large, heavy-electron effective mass/ital m//sub /ital e///sup */. Thus, the peak may not necessarily be an indication ofanisotropic superconductivity.

• Research Organization: Department of Physics, Ohio State University, Columbus, Ohio 43210-1106(US)
• OSTI ID: 5953556
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 40:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOYS
ATTENUATION
BCS THEORY
BERYLLIUM ALLOYS
EFFECTIVE MASS
INTERMETALLIC COMPOUNDS
MASS
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
SOUND WAVES
SUPERCONDUCTORS
ULTRASONIC WAVES
URANIUM ALLOYS