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. doi:10.1103/PhysRevB.62.17103. 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.
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| 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. | ||||||||||
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| Subject Keywords: | SPONTANEOUS EMISSION; QUANTUM DOT; FIELD | ||||||||||
| Issue or Number: | 24 | ||||||||||
| DOI: | 10.1103/PhysRevB.62.17103 | ||||||||||
| 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: | 08 Nov 2021 20:23 |
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