標題: Effects of Current-Induced Forces on Pt-Benzene-Pt Single-Molecule Junctions
作者: Hsu, Bailey C.
Amanatidis, Ilias
Liu, Wei-Lin
Tseng, Allen
Chen, Yu-Chang
電子物理學系
Department of Electrophysics
公開日期: 6-二月-2014
摘要: From first-principles approaches, we investigate the torque exerted by the current-induced forces in a highly asymmetric molecular junction, where the benzene molecule is directly connected to the platinum electrodes. We observe that the curved flow of the current streamline around the tilted molecule can induce a net torque, which tends to rotate the benzene molecule, much like the way a stream of water rotates a waterwheel. The magnitude and direction of the net torque are determined by the detailed current density flowing through the molecular junction. Such an asymmetric molecular junction could offer an experimentally practical system for the exploration of an electrically controllable single-molecule motor. The idea given above is also supported by a simple physical model based on the Landauer-Buttiker formula in the tight-binding framework.
URI: http://dx.doi.org/10.1021/jp4073284
http://hdl.handle.net/11536/23794
ISSN: 1932-7447
DOI: 10.1021/jp4073284
期刊: JOURNAL OF PHYSICAL CHEMISTRY C
Volume: 118
Issue: 5
起始頁: 2245
結束頁: 2252
顯示於類別:期刊論文


文件中的檔案:

  1. 000331153700002.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。