• DocumentCode
    1654413
  • Title

    High resolution ultrasonic measurements of UPt3 at very low temperatures

  • Author

    Jin, C. ; Lee, D.M. ; Lin, S.-W. ; Levy, M. ; Sarma, Bimal K. ; Hinks, D.G.

  • Author_Institution
    Lab. of Atom. & Solid State Phys., Cornell Univ., Ithaca, NY, USA
  • fYear
    1992
  • Firstpage
    917
  • Abstract
    Longitudinal sound velocity and attenuation measurements were performed on high-quality single-crystal UPt3 between 5 mK and 700 mK in zero magnetic field. The low temperatures reached in this experiment allow better comparison to the theoretical predictions of the longitudinal sound attenuation for different gap states. A significant dispersion of sound associated with the superconducting transition was observed. Within the resolution of the ultrasonic measurements on this sample, no manifestation of the recently reported specific heat anomaly around 18 mK was observed
  • Keywords
    heavy fermion superconductors; platinum alloys; superconducting transition temperature; ultrasonic absorption; ultrasonic dispersion; ultrasonic relaxation; ultrasonic velocity; uranium alloys; 5 to 700 mK; UPt3; US attenuation; US velocity; dispersion of sound; heavy-fermion superconductor; high resolution; high-quality single-crystal; longitudinal sound attenuation; relaxation process; superconducting transition; very low temperatures; zero magnetic field; Acoustic transducers; Amplitude modulation; Attenuation measurement; Frequency modulation; Laboratories; Magnetic field measurement; Physics; Radio frequency; Temperature dependence; Ultrasonic variables measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
  • Conference_Location
    Tucson, AZ
  • Print_ISBN
    0-7803-0562-0
  • Type

    conf

  • DOI
    10.1109/ULTSYM.1992.275839
  • Filename
    275839
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1654413