Journal of Low Temperature Physics

, Volume 110, Issue 1–2, pp 603–608 | Cite as

Capacitive Generation and Detection of Third Sound Resonances in Saturated Superfluid 4He Films

  • A.M.R. Schechter
  • R.W. Simmonds
  • J.C. Davis
Article

Abstract

We report on the operation of a third sound resonator for use with saturated superfluid helium films. Measurements of superfluid 4 He third sound velocities as a function of film thickness are described for films ranging in thickness from 26 nm to 85 nm. The film resides on the gold-covered surface of a 38 mm diameter copper disk, which has been machined with a diamond-tipped cutting tool, and has an rms roughness of about 10 nm.

Keywords

Copper Helium Film Thickness Magnetic Material Sound Velocity 
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 Publishing Corporation 1998

Authors and Affiliations

  • A.M.R. Schechter
    • 1
  • R.W. Simmonds
    • 1
  • J.C. Davis
    • 1
  1. 1.Department of PhysicsUniversity of CaliforniaBerkeleyU.S.A.

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