Importance of the Electronic State on the Electrode in Electron Tunneling Processes between the Electrode and the Quantum Dot

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概要

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• We have revealed that the electronic states in the electrodes give a significant influence to the electron transport in nano-electronic devices. We have theoretically investigated the time-evolution of electron transport from a two-dimensional electron gas (2DEG) to a quantum dot (QD), where 2DEG represents the electrode in the nano-electronic devices. We clearly showed that the coherent electron transport is remarkably modified depending on the initial electronic state in the 2DEG. The electron transport from the 2DEG to the QD is strongly enhanced, when the initial state of the electron in the 2DEG is localized below the QD. We have proposed that controlling the electronic state in the electrodes could realize a new concept device function without modifying the electrode structures; that achieves a new controllable state in future nano-electronic devices.

• 社団法人電子情報通信学会の論文
• 2009-06-17

著者

• MURAGUCHI Masakazu

  Center for Interdisciplinary Research, Tohoku University

• ENDOH Tetsuo

  Center for Interdisciplinary Research, Tohoku University

• Takada Yukihiro

  Graduate School of Pure and Applied Science, University of Tsukuba

• Nomura Shintaro

  Graduate School of Pure and Applied Science, University of Tsukuba

• Shiraishi Kenji

  Graduate School of Pure and Applied Science, University of Tsukuba

• Takada Yukihiro

  Univ. Tsukuba Tsukuba‐shi Jpn

• Nomura Shintaro

  Graduate School Of Pure And Applied Science University Of Tsukuba

• Endoh Testuo

  Center for Interdisciplinary Research, Tohoku University

• Endoh Testuo

  Center For Interdisciplinary Research Tohoku University

• Endoh Tetsuo

  Tohoku Univ. Sendai‐shi Jpn

• Shiraishi Kenji

  Graduate School Of Pure And Applied Sciences University Of Tsukuba

• Muraguchi Masakazu

  Tohoku Univ. Sendai‐shi Jpn

• Muraguchi Masakazu

  Center For Interdisciplinary Research Tohoku University

• Muraguchi Masakazu

  Center For Interdisciplinary Research Tohoku University:center For Spintronics Integrated Systems To

• Shiraishi Kenji

  Graduate School Of Applied Physics Univ Of Tsukuba

• Takada Yukihiro

  Graduate School Of Pure And Applied Science University Of Tsukuba

• Shiraishi Kenji

  Graduate School Of Pure And Applied Science University Of Tsukuba

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