A theoretical model for single molecule incoherent scanning tunneling spectroscopy

Details A theoretical model for single molecule incoherent scanning tunneling spectroscopy A theoretical model for single molecule incoherent scanning tunneling spectroscopy

2007-03-09

arxiv.org/abs/cond-mat/0703236v2

J. Phys.: Condens. Matter 20, 445004 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 5 figures

Scientific paper

10.1088/0953-8984/20/44/445004

Single molecule scanning tunneling spectroscopy (STS), with dephasing due to elastic and inelastic scattering, is of some current interest. Motivated by this, we report an extended Huckel theory (EHT) based mean-field Non-equilibrium Green's function (NEGF) transport model with electron-phonon scattering treated within the self-consistent Born approximation (SCBA). Furthermore, a procedure based on EHT basis set modification is described. We use this model to study the effect of the temperature dependent dephasing, due to low lying modes in far-infrared range for which hw<

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