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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2008, Volume 88, Issue 1, Pages 40–45
(Mi jetpl156)
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This article is cited in 2 scientific papers (total in 2 papers)
CONDENSED MATTER
Interference of ballistic electrons in an open quantum dot at high temperatures
M. Yu. Mel'nikova, V. T. Dolgopolova, V. S. Khrapaia, D. Schuhb a Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia
b Institut für Experimentelle und Angewandte Physik, Universität Regensburg, 93050 Regensburg, Germany
Abstract:
The Aharonov-Bohm-type oscillations in the ballistic magnetoconductivity of an open quantum dot ~1 μm in size created in the GaAs/AlGaAs heterostructure by local anode oxidation have been studied. The measurements have been performed at temperatures of 4.2 and 1.5 K, which are high enough to expect a considerable suppression of the oscillations with period h/e (in magnetic flux units). The magnetoconductivity oscillations with a period less than the quantum h/e with respect to the magnetic field are observed at 1.5 K. The explanation is proposed on the basis of the interference of the electrons moving along the time-reversed paths inscribed into the quantum dot that have their initial and final points at one of the contacts, i.e., corresponding to a period of h/2e.
Received: 13.05.2008 Revised: 28.05.2008
Citation:
M. Yu. Mel'nikov, V. T. Dolgopolov, V. S. Khrapai, D. Schuh, “Interference of ballistic electrons in an open quantum dot at high temperatures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 88:1 (2008), 40–45; JETP Letters, 88:1 (2008), 36–40
Linking options:
https://www.mathnet.ru/eng/jetpl156 https://www.mathnet.ru/eng/jetpl/v88/i1/p40
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Abstract page: | 264 | Full-text PDF : | 100 | References: | 48 |
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