Curved two-dimensional electron gases

DOI to cite this document:: 10.5283/epub.11493

Lorke, Axel ; Böhm, Stefan ; Wegscheider, Werner

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Date of publication of this fulltext: 15 Dec 2009 08:52

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Abstract

A method is introduced which makes it possible to fabricate non-planar two-dimensional electron gases. Making use of the “epitaxial lift-off” process, patterned, gated and contacted heterostructures are transferred from their crystalline substrate onto small glass tubes with diameters of a few millimeters. The transport properties of two-dimensional electron gases inside these curved ...