测量熵变化的低温差热分析
Low-temperature differential-thermal analysis to measure variations in entropy
摘要：
我们描述了我们如何可以精确地测量在室温以下的小固体样品的熵S的变化，作为温度T或外部磁场H的函数，分别。一个简单的差热分析（DTA）技术允许，在原则上，用于测量的变化S没有任何仪器扩大的数据。该方法特别适合检测毫克大小样本中的急剧相变。
英文摘要：
We describe how we can precisely measure variations in the entropy S of small solid samples below room temperature, as a function the temperature T or the external magnetic field H, respectively. A simple differential-thermal analysis (DTA) technique allows, in principle, for the measurement of variations in S without any instrumental broadening of the data. The method is particularly well suited for the detection of sharp phase transitions in samples of milligram size.
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