A four-point surface conductivity probe suitable forin situultrahigh vacuum conductivity measurements
作者:
Christopher G. Wiegenstein,
Kirk H. Schulz,
期刊:
Review of Scientific Instruments
(AIP Available online 1997)
卷期:
Volume 68,
issue 4
页码: 1812-1813
ISSN:0034-6748
年代: 1997
DOI:10.1063/1.1147968
出版商: AIP
数据来源: AIP
摘要:
A simple design for a four-point probe suitable for precision surface conductivity measurements is described. Our design makes use of small, commercially available spring contact probes which are mounted in a custom built MACOR ceramic probe head. The design is suitable for use in ultrahigh vacuum applications, and the custom-built parts can be fabricated in any machine shop. Very reproducible values were obtained using this probe for surface conductivity measurements on aMoS2(0001)model catalyst, a sputter deposited indium-tin oxide thin film and a doped silicon wafer. ©1997 American Institute of Physics.
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