Modified high‐pressure ac calorimetric technique
Modified high‐pressure ac calorimetric technique
复制标题
改进的高压交流量热技术
DOI：
10.1063/1.1137841
复制
发表时间：
1984
影响因子：
1.6
通讯作者：
C. Chu
中科院分区：
文献类型：
--
作者：
X. Jin;P. Hor;Maw‐Kuen Wu;C. Chu
利用正负方波作为热源，发展了一种改进的高压交流量热法。由于加热源中不存在二次谐波分量，因此完全消除了交流比热中的杂散信号。因此，该技术的灵敏度得到了提高，成功地检测到了高压下CESB中的许多相变。
A modified high‐pressure ac calorimetric technique has been developed by using a ‘‘plus–minus’’ square wave as the heating source. Because of the absence of a second‐harmonic component in the heating source, the spurious signal in the ac specific heat is thus totally removed. The sensitivity of the technique is, therefore, improved as evidenced by the successful detection of the many phase transitions in CeSb under high pressure.