A Model of a Switching Molecular Junction with a Ring-shaped Molecule(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• To determine efficient molecular junction configurations for use in switches, we analyzed the conductance of a model representing a molecular junction with a ring-shaped molecule weakly connected with two one-dimensional electrodes, taking into account resonance and interference effects. We considered a model in which the center molecule changes in shape from a ring to a chain and the Fermi energy lies at the center of the molecular eigenstates. We discovered that requirements for switching, which include particular atomic contacts relative to the reaction site, single out the following two cases as the most effective junctions. The large conductance through a 4m-membered ring due to the resonance effect becomes small when the conduction path becomes a chain. A less-conductive 4m + 2-membered ring in the off-resonance state is switched on by the resonance effect in the final chain-shaped path.

• 社団法人日本物理学会の論文
• 2005-02-15

著者

• Suzuki Naoshi

  Graduate School Of Engineering Science Osaka University

• Kawamoto Tohru

  Nanotechnology Research Institute National Institute Of Advanced Industrial Science And Technology (

• Kawamoto Tohru

  Nanotechnology Research Institute (nri) And Research Consortium For Synthetic Nano-function Material

• Kawamoto Tohru

  Nanotechnology Research Institute (nri) National Institute Of Advanced Industrial Science And Techno

• KUSAKABE Koichi

  Graduate School of Engineering Science, Osaka University

• KUSUNO Nobuhiro

  Graduate School of Engineering Science, Osaka University

• Kusakabe Koichi

  Graduate School Of Engineering Science Osaka University

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