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Spin blockade in lateral quantum dots - Negative differential conductance and spin spectroscopy

Kupidura, D. ; Rogge, M. C. ; Reinwald, Matthias ; Wegscheider, Werner ; Haug, Thomas
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Date of publication of this fulltext: 25 Jan 2010 13:27


Abstract

We report on spin blockade observed in several different lateral quantum dot systems. We observe the typical features of alternating position and amplitude of Coulomb peaks as a function of a magnetic field perpendicular to the sample surface. In a nonlinear regime strong negative differential conductance is observed with a striking regularity. This is not a universal behaviour. Instead we ...

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