Effects of current-induced forces on Pt-benzene-Pt single-molecule junctions

Bailey C. Hsu, Ilias Amanatidis, Wei Lin Liu, Allen Tseng, Yu-Chang Chen*

*此作品的通信作者

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

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-Büttiker formula in the tight-binding framework.

原文English
頁(從 - 到)2245-2252
頁數8
期刊Journal of Physical Chemistry C
118
發行號5
DOIs
出版狀態Published - 6 二月 2014

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