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Electron transport simulations of a multilead system using the impulse‐response method

We introduce a computational procedure for designing nanoscale electronic devices using an impulse‐response method, which is an originally developed simulation method within the framework of real‐space finite‐difference formalism. The impulse‐response method is a new computational scheme for computing the scattering wave function for an incident electron with arbitrary energy in which the impulse wave function is adopted as an initial state of the time evolution. In applying the impulse‐response method to electron transport simulations of two‐dimensional multilead systems, we discuss and illustrate the feasibility of designing a nanoscale multilead electron transportation system. Copyright © 2008 John Wiley & Sons, Ltd.