Electron transport of molecular bridges and the search for their new function

• TSUKADA Masaru

  Graduate School of Advanced Science and Engineering, Waseda University

Bibliographic Information

Other Title

• 分子架橋の電子輸送と新機能探索
• 分子架橋の電子輸送と新機能探索--分子デバイス光応答への期待
• ブンシ カキョウ ノ デンシ ユソウ ト シンキノウ タンサク ブンシ デバイス ヒカリ オウトウ エノ キタイ
• −分子デバイス光応答への期待−

Abstract

Transport properties of the bridge structures of organic molecules or graphene are theoretically analyzed. Coherent transport is confirmed in atomic wires by the quantization of conductance. As the bottleneck increases, oscillatory structures appear in the transmission spectra, which further changes to a spiky structure due to resonance tunneling. Some remarkable features such as a large loop current appear in the resonant tunneling process. With the increased coupling of electrons to molecular vibrations, or to the electro-magnetic environment, the transport feature changes from coherent to dissipative. In the case of coupling to molecular vibrations, the transition from a coherent molecular orbital-like transport to a dissipative polaron-like transport is analyzed.

Journal

• Oyo Buturi

  Oyo Buturi 77 (6), 643-649, 2008-06-10

  The Japan Society of Applied Physics

Keywords

• molecular bridge
• quantized conductance
• coherent transport
• eigen-channel
• resonant tunneling
• loop current
• molecular vibration
• polaron

Details

• CRID: 1390564227314046080
• NII Article ID: 10021109220
• NII Book ID: AN00026679
• DOI: 10.11470/oubutsu.77.6_643
• ISSN: 21882290
• ISSN: 03698009
• NDL BIB ID: 9536986
• Web Site: http://id.ndl.go.jp/bib/9536986
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9536986
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed