Temperature scale and heat capacity of superfluid 3He-B in the 100μK range
Temperature scale and heat capacity of superfluid 3He-B in the 100μK range
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DOI：
10.1103/physrevb.57.14381
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发表时间：
1998-06-01
影响因子：
3.7
通讯作者：
Godfrin, H
中科院分区：
文献类型：
--
作者：
Bauerle, C;Bunkov, YM;Godfrin, H
我们最近在非常低的温度下对超流He-3-B测辐射热计进行了精确的能量标定。校准过程提供了一个衡量的B相超流体在低温制度的热容。我们的结论是准粒子激发构成的主要热库，即使温度接近100亩K。此外，我们建议，热容量的测量可以用来定义一个温度范围为这个温度制度的基础上振动线谐振器。
We have recently performed accurate energy calibrations of a superfluid He-3-B bolometer at very low temperatures. The calibration process provides a measure of the heat capacity of the B-phase superfluid in the low-temperature regime. We conclude that quasiparticle excitations constitute the main; thermal reservoir even for temperatures approaching 100 mu K. Furthermore, we propose that the heat-capacity measurements may be used to define a temperature scale for this temperature regime based on vibrating wire resonators.