Note: The effect of sample insulation on experiment precision of resistivity measurement in a diamond anvil cell

Gang Peng; Yonghao Han; Chunxiao Gao; Yanzhang Ma; Baojia Wu; Cailong Liu; Bao Liu; Tingjing Hu; Yue Wang; Xiaoyan Cui; Wanbin Ren; Hongwu Liu; Guangtian Zou

doi:10.1063/1.3356983

Note: The effect of sample insulation on experiment precision of resistivity measurement in a diamond anvil cell

Rev Sci Instrum. 2010 Mar;81(3):036108. doi: 10.1063/1.3356983.

Authors

Gang Peng¹, Yonghao Han, Chunxiao Gao, Yanzhang Ma, Baojia Wu, Cailong Liu, Bao Liu, Tingjing Hu, Yue Wang, Xiaoyan Cui, Wanbin Ren, Hongwu Liu, Guangtian Zou

Affiliation

¹ State Key Lab for Superhard Materials, Jilin University, Changchun 130012, People's Republic of China.

PMID: 20370231
DOI: 10.1063/1.3356983

Abstract

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.