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Design of susceptibility measurement system of superconducting transition temperature in diamond anvil cell
Author(s): 
Pages: 93-96
Year: Issue:  6
Journal: Electronic Measurement Technology

Keyword:  diamond anvil cell(DAC)Meissner effectmagnetic susceptibilityphase-locked amplifier technology;
Abstract: 金刚石对顶压砧(DAC)中,用电阻法、比热法等来实现超导转变温度测量时,由于高压状态下,直接安装在样品上的电极极易受压断裂且制作困难,成功率极低,不易实现.测量系统设计的自感交流磁化率方案可解决上述问题,测量系统分为磁信号检测、温度检测以及基于LabVIEW的数据采集处理3部分组成.通过对样品发生超导前后的模拟测试,测量出超导样品发生超导的转变温度.这表明所设计的超导转变磁测量系统,可用于高压实验室的超导转变检测.
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