Dimensional-crossover of 3He gas formed in one-dimensional nanometer tunnel

Yuki Matsushita; Junko Taniguchi; Akira Yamaguchi; Hidehiko Ishimoto; Hiroki Ikegami; Taku Matsushita; Nobuo Wada; Silvina M. Gatica; Milton W. Cole; Francesco Ancilotto

doi:10.1007/s10909-005-1552-4

Dimensional-crossover of ³He gas formed in one-dimensional nanometer tunnel

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

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We have measured the heat capacity of ³He adsorbed on one-dimensional (1D) nanopores of FSM-16 with different pore-diameters. Dilute ³He atoms on more than one layers of ⁴He preplated nanotunnels with 22 Å in diameter show a Schottky type peak around 0.25 K, which is similar to our recent report for 28 Å nanotunnels. This behavior of heat capacity is explained as the crossover from 1D to 2D motion of Fermi gas in a confined geometry. The pore-size effect on the temperature and magnitude of the peak is quantitatively reproduced by a simple calculation for non-interacting Fermi gas in the adsorption potential from the substrate.

Original language	English (US)
Pages (from-to)	211-216
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	138
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-005-1552-4
State	Published - Sep 5 2005

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

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10.1007/s10909-005-1552-4

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title = "Dimensional-crossover of 3He gas formed in one-dimensional nanometer tunnel",

abstract = "We have measured the heat capacity of 3He adsorbed on one-dimensional (1D) nanopores of FSM-16 with different pore-diameters. Dilute 3He atoms on more than one layers of 4He preplated nanotunnels with 22 {\AA} in diameter show a Schottky type peak around 0.25 K, which is similar to our recent report for 28 {\AA} nanotunnels. This behavior of heat capacity is explained as the crossover from 1D to 2D motion of Fermi gas in a confined geometry. The pore-size effect on the temperature and magnitude of the peak is quantitatively reproduced by a simple calculation for non-interacting Fermi gas in the adsorption potential from the substrate.",

author = "Yuki Matsushita and Junko Taniguchi and Akira Yamaguchi and Hidehiko Ishimoto and Hiroki Ikegami and Taku Matsushita and Nobuo Wada and Gatica, {Silvina M.} and Cole, {Milton W.} and Francesco Ancilotto",

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T1 - Dimensional-crossover of 3He gas formed in one-dimensional nanometer tunnel

AU - Matsushita, Yuki

AU - Taniguchi, Junko

AU - Yamaguchi, Akira

AU - Ishimoto, Hidehiko

AU - Ikegami, Hiroki

AU - Matsushita, Taku

AU - Wada, Nobuo

AU - Gatica, Silvina M.

AU - Cole, Milton W.

AU - Ancilotto, Francesco

PY - 2005/9/5

Y1 - 2005/9/5

N2 - We have measured the heat capacity of 3He adsorbed on one-dimensional (1D) nanopores of FSM-16 with different pore-diameters. Dilute 3He atoms on more than one layers of 4He preplated nanotunnels with 22 Å in diameter show a Schottky type peak around 0.25 K, which is similar to our recent report for 28 Å nanotunnels. This behavior of heat capacity is explained as the crossover from 1D to 2D motion of Fermi gas in a confined geometry. The pore-size effect on the temperature and magnitude of the peak is quantitatively reproduced by a simple calculation for non-interacting Fermi gas in the adsorption potential from the substrate.

AB - We have measured the heat capacity of 3He adsorbed on one-dimensional (1D) nanopores of FSM-16 with different pore-diameters. Dilute 3He atoms on more than one layers of 4He preplated nanotunnels with 22 Å in diameter show a Schottky type peak around 0.25 K, which is similar to our recent report for 28 Å nanotunnels. This behavior of heat capacity is explained as the crossover from 1D to 2D motion of Fermi gas in a confined geometry. The pore-size effect on the temperature and magnitude of the peak is quantitatively reproduced by a simple calculation for non-interacting Fermi gas in the adsorption potential from the substrate.

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Dimensional-crossover of ³He gas formed in one-dimensional nanometer tunnel

Abstract

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