期刊
CHEMICAL PHYSICS LETTERS
卷 530, 期 -, 页码 86-92出版社
ELSEVIER
DOI: 10.1016/j.cplett.2012.01.068
关键词
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资金
- SGCyT (Universidad Nacional del Nordeste)
- National Agency ANPCYT
- CONICET (Argentina) [PI 112/07, PICTO-UNNE 204/07, PIP 11220090100654/2010]
We discuss the general form of the transmission spectrum through a molecular junction in terms of the Green function of the isolated molecule. By introducing a tight binding method, we are able to translate the Green function properties into practical graphical rules for assessing beforehand the possible existence of antiresonances in an energy range for a given choice of connecting sites. The analysis is exemplified with a benzene molecule under a hypothetical local gate, which allows one to continuously tune the on-site energy of single atoms, for various connection topologies and gate positions. (C) 2012 Elsevier B. V. All rights reserved.
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