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Few electron double quantum dot in an isotopically purified 28Si quantum well

URN to cite this document:
urn:nbn:de:bvb:355-epub-265032
DOI to cite this document:
10.5283/epub.26503
Wild, A. ; Kierig, Johannes ; Sailer, J. ; Ager, J. W. ; Haller, E. E. ; Abstreiter, Gerhard ; Ludwig, S. ; Bougeard, Dominique
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Date of publication of this fulltext: 23 Oct 2012 06:32



Abstract

We present a few electron double quantum dot device defined in an isotopically purified Si-28 quantum well (QW). An electron mobility of 5.5 . 10(4)cm(2)(Vs)(-1) is observed in the QW, which is the highest mobility ever reported for a two-dimensional electron system in Si-28. The residual concentration of Si-29 nuclei in the Si-28 QW is lower than 10(3) ppm, at the verge where the hyperfine ...

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