Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9781636 | Journal of Physics and Chemistry of Solids | 2005 | 4 Pages |
Abstract
We have measured the heat capacity of 4He adsorbed on straight one-dimensional (1D) pores 2.2Â nm in diameter of the substrate FSM-16. Heat capacities of the 4He fluid film show the power laws close to T at low temperatures, and close to T2 at high temperatures around 0.5Â K, suggesting a crossover from the low-temperature 1D state to the higher-temperature state. The results are well explained by assuming a phonon dispersion with continuous 1D states in the axial direction and discrete energy levels in the azimuthal direction.
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Materials Science
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Authors
Yuki Matsushita, Ryo Toda, Mitsunori Hieda, Taku Matsushita, Nobuo Wada,