PHASE-SEPARATION CURVE OF HE-3-HE-4 MIXTURES UNDER PRESSURE

被引：30
|
作者：
YOROZU, S
HIROI, M
FUKUYAMA, H
AKIMOTO, H
ISHIMOTO, H
OGAWA, S
机构：
[1] Institute for Solid State Physics, University of Tokyo, Tokyo 106, 7-22-1 Roppongi, Minato-ku
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 22期
关键词：
D O I：
10.1103/PhysRevB.45.12942
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The solubility of He-3 in He-4 has been measured under pressure up to 20 bars in the temperature range between 1 and 250 mK. At temperatures below 60 mK, the solubility varies as T2 at all pressures. The coefficient of the T2 term at 0 bar, beta, is 8.29+/-0.03 K-2, lower than the values of 9-11 K-2 reported previously. The value of beta rapidly decreases down to 3.92+/-0.03 K-2 at 15 bars with increasing pressure. The interaction potential between He-3 quasiparticles is obtained by analyzing the solubility data on the basis of Ebner's formula. The effective mass derived from the potential has a weak and positive dependence on the He-3 concentration at all pressures.
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页码：12942 / 12948
页数：7
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