Abstract
Single-molecule scanning tunneling spectroscopy (STS), with dephasing due to elastic andinelastic scattering, is of some current interest. Motivated by this, we report an extendedHückel theory (EHT)-based mean-field non-equilibrium Green’s function (NEGF) transportmodel with electron–phonon scattering treated within the self-consistent Bornapproximation (SCBA). Furthermore, a procedure based on EHT basis set modification isdescribed. We use this model to study the effect of the temperature-dependent dephasingdue to low lying modes in the far-infrared range for which , on the resonant conduction through the highest occupied molecular orbital (HOMO)level of a phenyl dithiol molecule bonded to fcc-Au(111) contact. We finally propose toinclude dephasing in room temperature molecular resonant conduction calculations.
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