Conductance switching, hysteresis, and magnetoresistance in organic semiconductors

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The controllability of charge transport through an organic molecular spin-valve system is theoretically investigated on the basis of a Su-Schrieffer-Heeger model combined with the non-equilibrium Green's function formalism. We show how the formation of polaron in the organic sub-structure leads to a hysteretic conductance switching, via sweeping either the bias voltage or the electrochemical potential. We further obtain an exponential dependence of the magnetoresistance as a function of the applied bias voltage. The implications of calculated results in relation to experiments and device applications are addressed and commented.
21 pages, 7 figures

Keywords

Materials Science, Soft Condensed Matter

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/101721

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0508417
 http://arxiv.org/abs/cond-mat/0508417

Collections

arXiv