Pride, Prejudice, and Penury of {\it ab initio} transport calculations for single molecules

Details Pride, Prejudice, and Penury of {\it ab initio} transport calculations for single molecules Pride, Prejudice, and Penury of {\it ab initio} transport calculations for single molecules

2006-10-16

arxiv.org/abs/cond-mat/0610413v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Chapter contributed to the CRC Handbook on Molecular and Nanoelectronics, ed. S. Lyshevski

Scientific paper

Recent progress in measuring the transport properties of individual molecules has triggered a substantial demand for {\it ab initio} transport calculations. Even though program packages are commercially available and placed on custom tailored to address this task, reliable information often is difficult and very time consuming to attain in the vast majority of cases, namely when the molecular conductance is much smaller than $e^2/h$. The article recapitulates procedures for molecular transport calculations from the point of view of time-dependent density functional theory. Emphasis is describing the foundations of the ``standard method''. Pitfalls will be uncovered and the domain of applicability discussed.

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