Magnetotransport measurements on freely suspended two-dimensional electron gases

DOI to cite this document:: 10.5283/epub.11058

Blick, Robert H. ; Monzon, F. G. ; Wegscheider, Werner ; Bichler, Max ; Stern, F. ; Roukes, M. L.

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Date of publication of this fulltext: 30 Nov 2009 13:31

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Abstract

We present magnetotransport measurements on freely suspended two-dimensional electron gases from AlxGa1-xAs/GaAs heterostructures. The technique to realize such devices relies on a specially molecular beam epitaxy grown GaAs/AlxGa1-xAs-heterostructure, including a sacrificial layer. We fabricated simple mini-Hall-bars as well as quantum cavities and quantum dot systems. We find well-pronounced ...