Influence of a de Heat Flux on the Velocity of Second Sound near T-lambda

被引：13
|
作者：
Bhagat, S. M. [1 ]
Davis, R. S. [1 ]
机构：
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 1972年 / 7卷 / 1-2期
关键词：
D O I：
10.1007/BF00629126
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have measured the speed of second sound u(2) in He II in the presence of a heat flux Q. For T-lambda - 1 mK > T > T-lambda -3.5mK it is found that u(2) reduces linearly with Q(2), for 2 mW/cm(2) < Q < 6 mW/cm(2). By extrapolating the data we have deduced that the lambda transition temperature reduces linearly with Q.
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页码：157 / 167
页数：11
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