Double-island Coulomb blockade in (Ga,Mn)As nanoconstrictions

URN to cite this document:: urn:nbn:de:bvb:355-epub-318822
DOI to cite this document:: 10.5283/epub.31882

Geißler, Stefan ; Pfaller, Sebastian ; Utz, Martin ; Bougeard, Dominique ; Donarini, Andrea ; Grifoni, Milena ; Weiss, Dieter

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Date of publication of this fulltext: 29 May 2015 13:54

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Abstract

We report on a systematic study of the Coulomb-blockade effects in nanofabricated narrow constrictions in thin (Ga,Mn)As films. Different low-temperature transport regimes have been observed for decreasing constriction sizes: the Ohmic, the single-electron tunneling (SET), and a completely insulating regime. In the SET, complex stability diagrams with nested Coulomb diamonds and anomalous ...