Abstract
Within a simple model, we discuss spin inelastic currents in molecular ring junctions. We generalize considerations of the spin-flip inelastic electron tunneling spectroscopy (IETS) to the case of multisite molecular system, and formulate a conserving approximation, which takes into account renormalization of elastic channel. We also extend recent studies of circular currents in molecular junctions beyond scattering theory formulation. We demonstrate control of the spin-flip IETS signal and discuss spin polarization of total and circular currents in a benzene ring junction.
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