de Haan, S. and Lorke, A. and Kotthaus, J. P. and Wegscheider, Werner and Bichler, M. (2004) Rectification in mesoscopic systems with broken symmetry: Quasiclassical ballistic versus classical transport. PHYSICAL REVIEW LETTERS, 92 (5): 056806. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
In suitably designed mesoscopic semiconductor structures, the phenomenon of ballistic rectification can be observed. A currently discussed microscopic model relates the observations to the interplay between fully quantized and quasiclassical current paths. We present measurements that contribute substantially to the clarification of the fascinating topic. In particular, we observe the opposite sign of the output voltage as compared to the prediction. Demonstrating the basic principle upon which the rectification is based-the asymmetry of the voltage drop in a quasiclassical wire-and extending the model to the classical transport regime, we can well explain our experiments as being caused by the interplay of quasiclassical ballistic and classical transport. Tunable ballistic rectifiers generating very large output signals and operating at room temperature raise the hope for future applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Y-BRANCH SWITCH; NONLINEAR OPERATION; RATCHETS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jul 2021 12:01 |
| Last Modified: | 21 Jul 2021 12:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38002 |
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