Transverse acoustic impedance of normal liquid 3He with 4He coating

Yuta Tamura, Satoshi Murakawa, Yuichiro Wada, Masahiro Wasai, Masamichi Saitoh, Yuki Aoki, Ryuji Nomura, Yuichi Okuda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We measured the transverse acoustic impedance of the normal liquid 3He at 16 MHz and 10 bar with and without 4He layers plated on a wall in the temperature range of 500 to 3 mK. The real component of the impedance gradually increased with cooling in the high-temperature hydrodynamic region and saturated in the low-temperature collisionless region. In the crossover region around 20 mK, the real component had a steep increase and the imaginary component was minimum. Overall change in the temperature dependence became smaller by 4He coating and we can obtain the specularity parameter S of the wall by fitting the temperature dependence of the experimental impedance to the theory.

Original languageEnglish
Article number032106
JournalJournal of Physics: Conference Series
Issue number3
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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