Mode-detailed analysis of transmission based directly on Green’s functions
Zhejiang Institute of Modern Physics, Zhejiang
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Received in final form: 29 May 2016
Published online: 5 September 2016
Fisher-Lee relation is a well-established tool to decode the mode information from Green’s function and coupling parameters. Using the Bloch eigen-modes of the leads, we show that the term can be expressed by the Bloch eigen-mode vectors and the wave velocities which give unambiguous algorithm of in the Fish-Lee relation. Using this approach, we present an accurate and convenient technique to analyze all transport modes and also the dominant channels of an electronic transport system in tight-binding model. We study graphene nanoribbon structures to demonstrate the typical application of our technique.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2016