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Ultrasonic Investigation of Novel Superconducting Systems

  • M. Levy
  • A. Schenstrom
  • K. J. Sun
  • B. K. Sarma

Abstract

Ultrasonic attenuation measurements are reported for the superconducting, normal, and mixed states of the heavy Fermion superconductors UPt3 and URu2Si2 and in the alloys of the ternary superconductors Er1-x HoxRh4B4. A peak in attenuation in the mixed state of UPt3 may be indicative of collective excitations of the flux line lattice. A broad maximum in attenuation is found below the superconducting transition temperature of URu2Si2. An increase in attenuation in the superconducting phase of the reentrant ternary superconductors with x = 0.6 and 0.813 is ascribed to increased spin phonon interaction induced by superconducting screening of crystalline electric fields.

Keywords

Mixed State Surface Acoustic Wave Superconducting State Superconducting Transition Temperature Superconducting Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • M. Levy
    • 1
  • A. Schenstrom
    • 1
  • K. J. Sun
    • 1
    • 2
  • B. K. Sarma
    • 1
  1. 1.Physics DepartmentUniversity of Wisconsin-MilwaukeeMilwaukeeUSA
  2. 2.NASA-Langley Research Center MS 231HamptonUSA

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