Presentation 1998/5/29
Tunneling Current and Surface Potential Simultaneous Measuring System using a Scanning Probe
Yutaka MAJIMA, Shin-ichiro MIYAMOTO, Yutaka OYAMA, Mitsumasa IWAMOTO,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A new simultaneous measuring system for tunneling current and surface potential has been developed. An electrochemically etched tungsten tip is used as a probe electrode. The distance (d) between a sample and the tip is changed sinusoidally with high precision. The tunneling current flows periodically in accordance with the vibration of the tip when d becomes as small as a few nm. The surface potential is measured using the principle of the Kelvin method in which the displacement current due to the presence surface potential and change in capacitance difference between the tip and the sample is detected. Simultaneous measurement of the tunneling current and the displacement current has been attained by utilizing their phase difference of a vibration of the tip. The method for determining the tip peak radius and d is also presented.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) tunneling current / Kelvin method / scanning probe / Maxwell displacement current / scanning tunneling spectroscopy
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Committee OME
Conference Date 1998/5/29(1days)
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Registration To Organic Material Electronics (OME)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Tunneling Current and Surface Potential Simultaneous Measuring System using a Scanning Probe
Sub Title (in English)
Keyword(1) tunneling current
Keyword(2) Kelvin method
Keyword(3) scanning probe
Keyword(4) Maxwell displacement current
Keyword(5) scanning tunneling spectroscopy
1st Author's Name Yutaka MAJIMA
1st Author's Affiliation Department of Physical Electronics, Tokyo Institute of Technology()
2nd Author's Name Shin-ichiro MIYAMOTO
2nd Author's Affiliation Department of Physical Electronics, Tokyo Institute of Technology
3rd Author's Name Yutaka OYAMA
3rd Author's Affiliation Department of Physical Electronics, Tokyo Institute of Technology
4th Author's Name Mitsumasa IWAMOTO
4th Author's Affiliation Department of Physical Electronics, Tokyo Institute of Technology
Date 1998/5/29
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Volume (vol) vol.98
Number (no) 92
Page pp.pp.-
#Pages 6
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