Heat capacity and thermal relaxation of bulk helium very near the lambda point

被引：203

作者：

Lipa, JA ^{[1
]}

Swanson, DR ^{[1
]}

Nissen, JA ^{[1
]}

Chui, TCP ^{[1
]}

Israelsson, UE ^{[1
]}

机构：

[1] CALTECH,JET PROP LAB,PASADENA,CA 91109

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.76.944

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report new high-resolution measurements of the heat capacity of liquid helium to within 2 nK from the lambda transition, performed with a large sample in earth orbit. The optimum value for the critical exponent characterizing the divergence of the heat capacity below the transition was found to be -0.01285, giving improved support for the renormalization-group theory of phase transitions. Some information on the temperature dependence of the thermal conductivity just above the transition was also obtained.

引用

页码：944 / 947

页数：4

共 37 条

[1]

Ahlers G., 1976, Physics of liquid and solid helium, pt.1, P85

[2] HEAT CAPACITY AT CONSTANT PRESSURE NEAR SUPERFLUID TRANSITION IN HE4 [J].