Critical velocity measurement in superfluid helium by doppler-shifted resonance splitting uri icon

abstract

  • Splitting of fourth-sound resonances was observed in a cylindrical cavity packed with 0.3 of alumina powder. The porosity of the powder was 83%. Angular velocities of persistent currents in the superfluid helium filling the cavity were measured up to 13 rad/sec. A critical velocity of 377 cm/sec at 1.55K was determined from these measurements. This result appears to be consistent with current theory and with other experiments. 1971 Plenum Publishing Corporation.

published proceedings

  • Journal of Low Temperature Physics

author list (cited authors)

  • Hubert, J. M., Adair, T. W., & Naugle, D. G.

citation count

  • 3

complete list of authors

  • Hubert, JM||Adair, TW||Naugle, DG

publication date

  • January 1971