First-Principles Study of Field-Effect Doping in Nano-Scale Systems by the Enforced Fermi-Energy Difference Method

• Uchida Kazuyuki

  NTT Basic Research Laboratories, Japan

• Kageshima Hiroyuki

  NTT Basic Research Laboratories, Japan

• Inokawa Hiroshi

  NTT Basic Research Laboratories, Japan

抄録

We propose a method for investigating the field-effect doping and the capacitance in nano-scale systems by first-principles calculations. Utilizing this method, we demonstrated the field-effect doping into the water bi-layer (channel) sandwiched by a pair of gate electrodes. We found that the H₂O molecules rotated around the O atoms artificially pinned, accompanied by the bias application between the channel and gate electrodes. We confirmed that Q-μ relation (capacitance) was also modified through this rotation of the molecule. We believe that this kind of bias-induced structural modifications of the channel materials can be utilized for designing nano-electronic devices with a variety of novel and functional characteristics. [DOI: 10.1380/ejssnt.2005.453]

収録刊行物

• e-Journal of Surface Science and Nanotechnology

  e-Journal of Surface Science and Nanotechnology 3 453-456, 2005

  公益社団法人 日本表面真空学会

キーワード

• Firstprinciples calculation
• Enforced Fermi-Energy Difference Method
• Field-effect doping
• Water
• Bias-induced structural modifications
• capacitance
• nano-scale capacitor

詳細情報

• CRID: 1390001205186311552
• NII論文ID: 130004933895
• DOI: 10.1380/ejssnt.2005.453
• ISSN: 13480391
• Web Site: http://www.jstage.jst.go.jp/article/ejssnt/3/0/3_0_453/_pdf
• 本文言語コード: en
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