Electron-Vibron Interaction Effects on Scanning Tunneling Microscopy Current through Melamine Adsorbed on Cu(100)
書誌事項
- 公開日
- 2012-10
- 資源種別
- journal article
- DOI
-
- 10.1143/jpsj.81.104711
- 公開者
- Tokyo : Physical Society of Japan
この論文をさがす
説明
Electron transport through the melamine molecule was studied. Melamine molecules adsorbed on a Cu(100) surface were investigated by density functional theory (DFT) calculations with the dynamical matrix method. On the basis of calculation results, a model Hamiltonian for a system composed of scanning tunneling microscope (STM), a melamine molecule, and a Cu surface was proposed, taking into account electron–vibron (electron–molecular vibrations) interactions within the melamine molecule. Then, the electronic current was formulated by the nonequilibrium Green's function (NEGF) method. Results show that current is affected by the electron–vibron interactions defined in the melamine molecule through its controllable structural changes. The rectification and fluctuation of current are triggered by low-energy electron–vibron interactions. Furthermore, the electron–vibron interaction effect is found to be enhanced as temperature increases to where higher-energy vibrons begin to be excited at lower energies. How...
収録刊行物
-
- Journal of the Physical Society of Japan
-
Journal of the Physical Society of Japan 81 (10), 104711-, 2012-10
Tokyo : Physical Society of Japan
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1521980705164466176
-
- NII論文ID
- 210000109743
- 40019447558
-
- NII書誌ID
- AA00704814
-
- ISSN
- 00319015
- 13474073
-
- NDL書誌ID
- 024011957
-
- 本文言語コード
- en
-
- 資料種別
- journal article
-
- NDL 雑誌分類
-
- ZM35(科学技術--物理学)
-
- データソース種別
-
- NDLサーチ
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
