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Transport through (Ga,Mn)As nanoislands: Coulomb blockade and temperature dependence of the conductance

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Schlapps, Markus ; Lermer, Teresa ; Geissler, Stefan ; Neumaier, Daniel ; Sadowski, Janusz ; Schuh, Dieter ; Wegscheider, Werner ; Weiss, Dieter
Date of publication of this fulltext: 08 Oct 2009 09:00


We report on magnetotransport measurements of nanoconstricted (Ga,Mn)As devices showing very large resistance changes that can be controlled by both an electric and a magnetic field. Based on the bias voltage and temperature-dependent measurements down to the millikelvin range we compare the models currently used to describe transport through (Ga,Mn)As nanoconstrictions. We provide an explanation ...


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