Coherent transmission in multiterminal molecular conductors
2011 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 248, no 11, 2676-2679 p.Article in journal (Refereed) Published
We consider coherent transport in an arbitrary molecular complex functioning as N-terminal conductor. The matrices that enter Dattas trace formula for the transmission function T(E) are represented in terms of free-molecule Greens function matrix elements referring exclusively to molecular atoms perturbed by the lead-molecule interaction. Explicit expressions of transmission function are obtained for a commonly used model of multiterminal molecular devices, where the molecule is coupled with each lead via a single bond. In the particular cases of connection of molecular wires via a single atom and a benzene ring, this gives the analytical expressions of T(E). Physical implications of the derived formulas are briefly discussed.
Place, publisher, year, edition, pages
Wiley-VCH Verlag Berlin , 2011. Vol. 248, no 11, 2676-2679 p.
coherent transmission; multiterminal devices; molecular wire junctions; Greens function partitioning; quantum resistance
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-73339DOI: 10.1002/pssb.201100127ISI: 000297517100058OAI: oai:DiVA.org:liu-73339DiVA: diva2:471851