Magnetic field induced effects in the high source-drain bias current of weakly coupled vertical quantum dot molecules

Details Magnetic field induced effects in the high source-drain bias current of weakly coupled vertical quantum dot molecules Magnetic field induced effects in the high source-drain bias current of weakly coupled vertical quantum dot molecules

2007-10-03

arxiv.org/abs/0710.0884v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures, accepted for publication in Physica E in EP2DS 17 conference proceedings

Scientific paper

10.1016/j.physe.2007.08.030

We report on the basic properties of recently observed magnetic field resonance, induced time dependent oscillation, and hysteresis effects in the current flowing through two weakly coupled vertical quantum dots at high source-drain bias (up to a few tens of mV). These effects bare some similarity to those reported in the N=2 spin-blockade regime, usually for weak in-plane magnetic field, of quantum dot molecules and attributed to hyperfine coupling, except here the measurements are conducted outside of the spin-blockade regime and the out-of-plane magnetic field is up to ~6 T.

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