Interaction of spin and vibrations in transport through single-molecule magnets

Details Interaction of spin and vibrations in transport through single-molecule magnets Interaction of spin and vibrations in transport through single-molecule magnets

2011-02-14

arxiv.org/abs/1102.2798v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We study linear electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule. We show that, despite the longitudinal anisotropy barrier and small transverse anisotropy, vibrational fluctuations can induce quantum spin-tunneling (QST) and a QST-Kondo effect. The interplay of spin scattering, QST and molecular vibrations can strongly enhance the Kondo effect and induce an anomalous magnetic field dependence of vibrational Kondo side-bands.

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