Kondo effect in carbon nanotube quantum dot in a magnetic field

Details Kondo effect in carbon nanotube quantum dot in a magnetic field Kondo effect in carbon nanotube quantum dot in a magnetic field

2009-01-26

arxiv.org/abs/0901.3981v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures

Scientific paper

The out-of-equilibrium electron transport of carbon nanotube semiconducting quantum dot placed in a magnetic field is studied in the Kondo regime by means of the non-equilibrium Green functions. The equation of motion method is used. For parallel magnetic field the Kondo peak splits in four peaks, following the simultaneous splitting of the orbital and spin states. For perpendicular field orientation the triple peak structure of density of states is observed with the central peak corresponding to orbital Kondo effect and the satellites reflecting the spin and spin-orbital fluctuations.

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