Inelastic effects in electronic currents at the nanometer scale

This thesis deals with inelastic effects in electronic currents. We developed a time-dependent technique and show that this approach gives rich insight into electron-phonon coupling during transport. We compare our results with a time-independent technique and analyse the validity of our model. Fina...

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Bibliographic Details
Main Author: Monturet, Serge
Language:English
Published: Université Paul Sabatier - Toulouse III 2008
Subjects:
Online Access:http://tel.archives-ouvertes.fr/tel-00469906
http://tel.archives-ouvertes.fr/docs/00/46/99/06/PDF/these.pdf
http://tel.archives-ouvertes.fr/docs/00/46/99/06/PDF/Summary.pdf
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Summary:This thesis deals with inelastic effects in electronic currents. We developed a time-dependent technique and show that this approach gives rich insight into electron-phonon coupling during transport. We compare our results with a time-independent technique and analyse the validity of our model. Finally, the results of a quantum chemistry calculation are presented in the framework of scanning tunneling miscroscopy (STM). We study the chemisorption of a tetrathiafulvalene molecule on a gold surface by performing the calculation of the charge transfer, the induced dipole, and the STM images using the density functional theory.