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A Schottky top-gated two-dimensional electron system in a nuclear spin free Si/SiGe heterostructure

Sailer, J. ; Lang, V. ; Abstreiter, G. ; Tsuchiya, G. ; Itoh, K. M. ; Ager, J. W. ; Haller, E. E. ; Kupidura, D. ; Harbusch, D. ; Ludwig, S. ; Bougeard, Dominique



Abstract

We report on the realization and top-gating of a two-dimensional electron system in a nuclear spin free environment using (28)Si and (70)Ge source material in molecular beam epitaxy. Electron spin decoherence is expected to be minimized in nuclear spin-free materials, making them promising hosts for solid-state based quantum information processing devices. The two-dimensional electron system ...

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