Superfluid 4he films adsorbed on pt packed powder

Kenya Shirahama, Nobuo Wada, Takashi Watanabe, Yasumasa Takano, Taro Ito

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The superfluid transition of 4He films adsorbed on Pt packed powders 500, 100, and 60 A in diameter has been studied using torsional oscillators. The behavior of the superfluid density near the transition differs considerably from earlier observations in films adsorbed on porous glass. For all the powder diameters, a narrow dissipation peak accompanies the transition unlike in the porous-glass case. The results are also In disagreement with the theories of the Kosterlitz-Thouless transition on a sphere.

Original languageEnglish
Pages (from-to)293-294
Number of pages2
JournalJapanese journal of applied physics
Issue numberS3-1
Publication statusPublished - 1987 Jan
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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