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Investigation of Spin Pairing in a Semiconductor Quantum Dot

Lüscher, S. ; Heinzel, Thomas ; Ensslin, Klaus ; Wegscheider, Werner ; Bichler, Max
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Date of publication of this fulltext: 30 Nov 2009 13:45


Abstract

Semiconductor quantum dots have been patterned into a Ga[Al]As heterostructure by local oxidation of the GaAs cap layer with an Atomic Force Microscope. The combination of high electron density and reduced shape deformation allows us to observe spin pairs in the dot's energy level spectrum, which is demonstrated via correlated parametric evolution of the Coulomb blockade resonances in ...

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