Probing a Kondo-correlated quantum dot with spin spectroscopy

D. Kupidura, M.C. Rogge, M. Reinwald, W. Wegscheider & Rolf J. Haug
We investigate the Kondo effect and spin blockade observed in a many-electron quantum dot and study the magnetic field dependence. At lower fields, a pronounced Kondo effect is found, which is replaced by the spin blockade at higher fields. In an intermediate regime, both effects are visible. We make use of this combined effect to gain information about the internal spin configuration of our quantum dot. We find that the data cannot be explained assuming...
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