Slave boson theory for transport through magnetic molecules with vibronic states

Details Slave boson theory for transport through magnetic molecules with vibronic states Slave boson theory for transport through magnetic molecules with vibronic states

2007-07-02

arxiv.org/abs/0707.0242v1

Phys. Rev. B 76, 075425 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 4 figures, to be published in PRB

Scientific paper

10.1103/PhysRevB.76.075425

We study the electron transport through a magnetic molecular transistor in the Kondo limit using the slave boson technique. We include the electron-phonon coupling and analyze the cases where the spin of the molecule is either S=1/2 or S=1. We use the Schrieffer-Wolff transformation to write down a low energy Hamiltonian for the system. In the presence of electron-phonon coupling, and for $S\smeq1$, the resulting Kondo Hamiltonian has two active channels. At low temperature, these two channels interfere destructively, leading to a zero conductance.

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