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Magnetotransport measurements on freely suspended two-dimensional electron gases

Blick, R. H. and Monzon, F. G. and Wegscheider, W. and Bichler, M. and Stern, F. and Roukes, M. L. (2000) Magnetotransport measurements on freely suspended two-dimensional electron gases. Physical Review B, 62 (24). pp. 17103-17107. ISSN 0163-1829. https://resolver.caltech.edu/CaltechAUTHORS:BLIprb00

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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 Shubnikov–de Haas oscillations and observe commensurability resonances, allowing characterization of the electron gas in these 100-nm thin membranes.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevB.62.17103DOIUNSPECIFIED
ORCID:
AuthorORCID
Roukes, M. L.0000-0002-2916-6026
Additional Information:© 2000 The American Physical Society. Received 10 April 2000; revised 25 July 2000. We gratefully acknowledge funding for this work from DARPA MTO/MEMS under Grant No. DABT-63-98-1-0012. We thank A.N. Cleland for expert technical help and S. Ulloa for critically reading the manuscript. R.H.B. thanks the Max-Planck-Gesellschaft (Otto-Hahn stipend), the Max-Planck-Institute for Solid State Physics, Stuttgart, and the Alexander-von-Humboldt Stiftung (Feodor-Lynen stipend) for support.
Funders:
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)DABT-63-98-1-0012
Max-Planck-GesellschaftUNSPECIFIED
Max Planck Institute for Solid State PhysicsUNSPECIFIED
Alexander von Humboldt StiftungUNSPECIFIED
Subject Keywords:SPONTANEOUS EMISSION; QUANTUM DOT; FIELD
Issue or Number:24
Record Number:CaltechAUTHORS:BLIprb00
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:BLIprb00
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5215
Collection:CaltechAUTHORS
Deposited By: Lindsay Cleary
Deposited On:05 Oct 2006
Last Modified:02 Oct 2019 23:20

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