Possible one-dimensional 3He quantum fluid formed in nanopores.
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.
Taniguchi
Junko
J
Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.
Yamaguchi
Akira
A
Ishimoto
Hidehiko
H
Ikegami
Hiroki
H
Matsushita
Taku
T
Wada
Nobuo
N
Gatica
Silvina M
SM
Cole
Milton W
MW
Ancilotto
Francesco
F
Inagaki
Shinji
S
Fukushima
Yoshiaki
Y