Aharonov-Bohm oscillations of a tuneable quantum ring

Keyser, U. F. and Borck, S. and Haug, R. J. and Bichler, M. and Abstreiter, G. and Wegscheider, Werner (2002) Aharonov-Bohm oscillations of a tuneable quantum ring. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 17 (5). L22-L24. ISSN 0268-1242

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Abstract

Using an atomic force microscope a ring geometry with self-aligned in-plane gates was directly written into a GaAs/AlGaAs heterostructure, Transport measurements in the open regime show only one transmitting mode and Aharonov-Bohm oscillations with more than 50% modulation are observed in the conductance. The tuning via in-plane gates allows one to study the Aharonov-Bohm effect in the whole range from the open ring to the Coulomb-blockade regime.

Item Type: Article
Uncontrolled Keywords: SINGLE-ELECTRON TRANSISTOR; NANOSTRUCTURES; OXIDATION
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: 16 Aug 2023 09:48
Last Modified: 16 Aug 2023 09:48
URI: https://pred.uni-regensburg.de/id/eprint/40367

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