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Ballistic Electron Transport Through Nanostructure Junctions from a Real-Space Finite-Difference Approach

机译:实空间有限差分方法通过纳米结构结的弹道电子传输

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摘要

In this article we briefly overview our theoretical studies on ballistic electron transport through nanoscale junction structures by means of our first-principles electron transport calculation method based on the real-space finite difference formalism within the framework of the density functional theory. In particular, we have theoretically explored the possibility to specifically tune the electron transport properties of benzene-based molecular junctions by the physically and chemically functionalization. Moreover, we have also studied the ballistic scattering of propagating electrons at a single impurity in a Ge dimer row by employing a semi-infinite electrode system, which is more realistic than conventional periodic models.
机译:在本文中,我们简要概述了我们在密度泛函理论框架内,基于基于实空间有限差分形式的第一原理电子传输计算方法,对通过纳米级结结构的弹道电子传输进行的理论研究。特别是,我们从理论上探讨了通过物理和化学官能化来具体调节基于苯的分子结的电子传输性质的可能性。此外,我们还通过采用半无限电极系统研究了在Ge二聚体行中单个杂质处的传播电子的弹道散射,这比常规的周期模型更现实。

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