A novel method for heat capacity measurements near 2K

被引:3
|
作者
Zassenhaus, GM
Woodcraft, AL
Reppy, JD
机构
[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA
[2] Cornell Univ, Ctr Mat Sci, Ithaca, NY 14853 USA
关键词
D O I
10.1023/A:1022572314002
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have constructed a calorimeter of novel design for high resolution heat capacity measurements near 2K. This device resembles high resolution paramagnetic salt thermometers used in previous heat capacity measurements on the He-4-Vycor system.(2) However, we have modified this thermometer so that our signal is no longer directly proportional to the temperature of the sample, but rather to the change in temperature with respect to time. We demonstrate the technique by measuring the heat capacity of paramagnetic gadolinium trichloride (GdCl3) salt near its critical temperature of 2.21K.
引用
收藏
页码:275 / 280
页数:6
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