Alternating Current of Scanning Tunneling Microscope for Organic Molecules Adsorbed on Metal in Terms of Equivalent Circuit of Scanning Tunneling Microscope
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概要
- 論文の詳細を見る
We have recorded the alternating current of the tunneling gap in scanning tunneling microscope (STM) for molecule adsorbed Au(111) as a function of tunneling gap distance using a lock-in amplifier for the oscillating bias voltage of STM at a DC bias voltage of 1 V, and measured the admittance between the STM tip and the sample in the tunneling region. The measured tip–sample capacitance steeply increased with decreasing gap distance in the range of 0 to 0.7 nm in correlation to the increase in tunneling current (conductance of admittance). The capacitance did not show a decrease with decreasing tunneling gap distance as expected for capacitance in the quantum regime in the experimental conditions studied.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-03-15
著者
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IWASAKI Hiroshi
The Institute of Scient4fic and Industrial Research, Osaka University
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Nishitani Ryusuke
Department Of Computer Science And Electronics Kyushu Institute Of Technology
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Begum Feroza
Department of Electrical and Electronics Engineering, University of the Ryukyus, Okinawa 903-0213, Japan
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Nishitani Ryusuke
Department of Electrical and Electronics Engineering, University of the Ryukyus, Okinawa 903-0213, Japan
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