Accurate measurement of sample conductivity in a diamond anvil cell with axis symmetrical electrodes and finite difference calculation
Accurate measurement of sample conductivity in a diamond anvil cell with axis symmetrical electrodes and finite difference calculation
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DOI：
10.1063/1.3624474
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发表时间：
2011-08
期刊：
影响因子：
1.6
通讯作者：
Junliang Yang;Gang Peng;Yonghao Han;C. Gao
中科院分区：
文献类型：
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作者：
Junliang Yang;Gang Peng;Yonghao Han;C. Gao
本文报道了一种在金刚石对顶砧装置上用有限差分法测量电导率的方法。轴对称电极由两部分组成：一部分是沉积在金刚石端面上的圆形薄膜电极，另一部分是金属垫片的内壁。由于两电极的非对称性，可以采用有限差分法计算样品的电导率，减小测量误差。
We report a relatively precise method of conductivity measurement in a diamond anvil cell with axis symmetrical electrodes and finite difference calculation. The axis symmetrical electrodes are composed of two parts: one is a round thin-film electrode deposited on diamond facet and the other is the inside wall of metal gasket. Due to the asymmetrical configuration of the two electrodes, finite difference method can be applied to calculate the conductivity of sample, which can reduce the measurement error.