Phonon-assisted and magnetic field induced Kondo tunneling in single molecular devices

Abstract

We consider the Kondo tunneling induced by multiphonon emission/absorption processes in magnetic molecular complexes with low-energy singlet-triplet spin gap and show that the number of assisting phonons may be changed by varying the Zeeman splitting of excited triplet state. As a result, the structure of multiphonon Kondo resonances may be scanned by means of magnetic field tuning.

arXiv comment7 pages, 6 figures. Shortened version of this paper will be published in the Proceedings of the International Conference "Phonons2007" (J. Phys: Conf. Series)

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