Current-Triggered Dynamics in Molecular-Scale Devices

西北大学的Tamar Seideman得到了理论和计算化学与材料理论计划的支持，该计划旨在开发和应用量子力学方法来理解分子尺度设备中的电流触发动力学。这项研究将讨论电子自由度和原子核自由度的影响，并使用散射方法来描述电子输运。应用包括在扫描隧道显微镜实验中模拟跨越电极和尖端的电流。如果能够理解和控制分子尺度的电子传输，许多新技术都是可能的。这项研究的成果将在分子水平上加强对电导的基本理解，探索在纳米尺度上操纵物质的新方法，并可能有助于发现纳米技术中的新现象。

Tamar Seideman of Northwestern University is supported by the Theoretical and Computational Chemistry and Materials Theory Programs to develop and apply quantum mechanical methods in understanding current-triggered dynamics in molecular-scale devices. This research will address effects due to both the electronic and nuclear degrees of freedom, and employs scattering methods to describe electron transport. Applications include modeling currents across electrodes and across tips in scanning tunneling microscopy experiments.Many new technologies are possible if molecular-scale electronic transport could be understood and controlled. The outcomes of this research will enhance fundamental understanding of conductance at the molecular level, explore new ways of manipulating matter at the nanometer scale, and potentially contribute to discoveries of new phenomena in the nanotechnology.