title: Possible one-dimensional 3He quantum fluid formed in nanopores.
abstract: Heat capacity measurements have been made down to 5 mK for 3He fluid films adsorbed in one-dimensional (1D) nanometer-scale pores, 28 A 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 1D state at low temperatures. The degenerate state of the 1D 3He fluid is indicated by a predominantly linear temperature dependence below about 30 mK.
authors.affiliation: Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.
authors.forename: Junko
authors.initials: J
authors.lastname: Taniguchi
authors.forename: Akira
authors.initials: A
authors.lastname: Yamaguchi
authors.forename: Hidehiko
authors.initials: H
authors.lastname: Ishimoto
authors.forename: Hiroki
authors.initials: H
authors.lastname: Ikegami
authors.forename: Taku
authors.initials: T
authors.lastname: Matsushita
authors.forename: Nobuo
authors.initials: N
authors.lastname: Wada
authors.forename: Silvina M
authors.initials: SM
authors.lastname: Gatica
authors.forename: Milton W
authors.initials: MW
authors.lastname: Cole
authors.forename: Francesco
authors.initials: F
authors.lastname: Ancilotto
authors.forename: Shinji
authors.initials: S
authors.lastname: Inagaki
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Fukushima