Possible one-dimensional 3He quantum fluid formed in nanopores

Junko Taniguchi, Akira Yamaguchi, Hidehiko Ishimoto, Hiroki Ikegami, Taku Matsushita, Nobuo Wada, Silvina M. Gatica, Milton W. Cole, Francesco Ancilotto, Shinji Inagaki, Yoshiaki Fukushima

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Heat capacity measurements have been made down to 5 mK for 3He fluid films adsorbed in one-dimensional (1D) nanometer-scale pores, 28 Å in diameter, preplated with 4He of 1.47 atomic layers. At low 3He density, the heat capacity shows a density-dependent, Schottky-like peak near 150 mK asymptoting to the value corresponding to a 2D Boltzmann gas at high temperatures. The peak behavior is attributed to the crossover from a 2D gas to a ID state at low temperatures. The degenerate state of the ID 3He fluid is indicated by a predominantly linear temperature dependence below about 30 mK.

Original languageEnglish (US)
Article number065301
JournalPhysical Review Letters
Volume94
Issue number6
DOIs
StatePublished - Feb 18 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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