The Effective Mass and Binding Energy of 4He in 3He in the Fermi Liquid Region

被引：0
作者：
Jizhong He
T. G. Culman
H. H. Hjort
D. O. Edwards
机构：
[1] The Ohio State University,Department of Physics
[2] Pennsylvania State University,Now at Department of Physics
[3] Now at IBM Storage Systems,undefined
来源：
Journal of Low Temperature Physics | 1998年 / 113卷
关键词：
Binding Energy; Magnetic Material; Effective Mass; Solubility Data; Fermi Liquid;
D O I：
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摘要：
We have measured the solubility of4He in liquid3He down to about 40 mK and at pressures from zero up to ∼ 24 atm. The solubility was obtained from the thickness of the superfluid film in contact with unsaturated solutions of4He in3He as a function of temperature. By fitting the solubility data to Fermi liquid theory, we obtained the parameters m4*and Δ as a function of pressure. Here, m4*is the effective mass of4He in liquid3He and Δ the difference in binding energy between4He in pure4He and4He in liquid3He. This difference has a minimum near 10 atm. The average of the results for m4*, at different pressures, is (1.3 ± 0.2)m4. This agrees with the many body calculations of de Saavedra et al., and with the Stokes hydrodynamic mass using the partial volume of4He in3He, v4*. The partial volume was obtained by taking the derivative of Δ with respect to pressure.
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页码：987 / 992
页数：5
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