Ab initio calculations of structural evolution and conductance of benzene-1,4-dithiol on gold leads.
ACS Nano
; 5(2): 795-804, 2011 Feb 22.
Article
em En
| MEDLINE
| ID: mdl-21226481
ABSTRACT
By performing ab initio density functional theory (DFT) calculations and electronic transport simulations based on the DFT nonequilibrium Green's functions method we investigate how the conformational changes of a benzene-1,4-dithiol molecule bonded to gold affect the molecular transport as the electrodes are separated from each other. In particular we consider the full evolution of the stretching process until the junction breaking point and compare results obtained with a standard semilocal exchange and correlation functional to those computed with a self-interaction corrected method. We conclude that the inclusion of self-interaction corrections is fundamental for describing both the molecule conductance and its stability against conformational fluctuations.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
ACS Nano
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Brasil