Note: The effect of sample insulation on experiment precision of resistivity measurement in a diamond anvil cell.
By use of electrical field analysis method, the accuracy of electrical resistivity measurement with the van der Pauw method in a diamond anvil cell (DAC) was investigated for the situation that sample and gasket were electrically shorted. It is revealed that metal gasket could not be used in electrical measurement in DAC if the inside wall of the sample chamber was not insulated. When the shorted area was less than 20% of the inside wall of the sample chamber, the relative error was smaller than 10%. Once the shorted area exceeded 25%, the relative error increased rapidly.
Peng
Gang
G
State Key Lab for Superhard Materials, Jilin University, Changchun 130012, People's Republic of China.
Han
Yonghao
Y
Gao
Chunxiao
C
Ma
Yanzhang
Y
Wu
Baojia
B
Liu
Cailong
C
Liu
Bao
B
Hu
Tingjing
T
Wang
Yue
Y
Cui
Xiaoyan
X
Ren
Wanbin
W
Liu
Hongwu
H
Zou
Guangtian
G