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Temperature-Squared Terms in the Heat Capacities of 3He Fluid Films

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Abstract

Recently the heat-capacity of a two-dimensional Fermi fluid is theoretically shown by Misawa to vary as C(T)=γ 0 T−γ 2 T2 as a function of temperature T at low temperature, where γ 0 and γ 2 are constants. To check this prediction our measured heat-capacities of three different systems are reexamined, i.e., the first-layer and second-layer 3He fluid films adsorbed on a bare graphite surface and monolayer 3He films floated on a 4He thin film adsorbed on graphite. The measured heat-capacities are reproduced well by the predicted formula. The areal-density dependence of γ 2 on each system also coincides with Misawa's prediction if the second order perturbation treatment by Fujimoto is adopted as the self-energy calculation.

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Authors and Affiliations

  1. Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan

    Masashi Morishita

  2. Department of Physics, College of Science and Technology, Nihon University, Kanda-Surugadai, Tokyo, 101-8308, Japan

    Setsuo Misawa

Authors
  1. Masashi Morishita
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  2. Setsuo Misawa
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Morishita, M., Misawa, S. Temperature-Squared Terms in the Heat Capacities of 3He Fluid Films. Journal of Low Temperature Physics 121, 483–488 (2000). https://doi.org/10.1023/A:1017526402848

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  • DOI: https://doi.org/10.1023/A:1017526402848

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