Oscillatory persistent currents in self-assembled quantum rings

Kleemans N. A.J.M.; Bominaar-Silkens Iris M. A.; Fomin Vladimir; Gladilin Vladimir; Granados Daniel; Taboada Alfonso Gonzalez; Garcia Jorge M.; Offermans Peter; Zeitler Ulrich; Christianen Peter C.M.; Maan Jan Cornelius; Devreese Josef T.; Koenraad Paul M.

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2023-09-13 15:24

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KLEEMANS, N. A.J.M., BOMINAAR-SILKENS, Iris M. A., FOMIN, Vladimir, GLADILIN, Vladimir, GRANADOS, Daniel, TABOADA, Alfonso Gonzalez, GARCIA, Jorge M., OFFERMANS, Peter, ZEITLER, Ulrich, CHRISTIANEN, Peter C.M., MAAN, Jan Cornelius, DEVREESE, Josef T., KOENRAAD, Paul M.. Oscillatory persistent currents in self-assembled quantum rings. In: Physical Review Letters, 2007, vol. 99, p. 0. ISSN 0031-9007. DOI: https://doi.org/10.1103/PhysRevLett.99.146808

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Physical Review Letters

Volumul 99 / 2007 / ISSN 0031-9007

Oscillatory persistent currents in self-assembled quantum rings

DOI:https://doi.org/10.1103/PhysRevLett.99.146808

Pag. 0-0

Kleemans N. A.J.M.¹, Bominaar-Silkens Iris M. A.², Fomin Vladimir¹³⁴, Gladilin Vladimir³⁴, Granados Daniel⁵, Taboada Alfonso Gonzalez⁵, Garcia Jorge M.⁵, Offermans Peter¹, Zeitler Ulrich², Christianen Peter C.M.², Maan Jan Cornelius², Devreese Josef T.¹³, Koenraad Paul M.¹

¹ Eindhoven University of Technology,
² High Field Magnet Laboratory, Institute for Molecules and Materials, Radboud University,
³ University of Antwerp,
⁴ Moldova State University,
⁵ Microelectronics Institute of Madrid

Disponibil în IBN: 7 iulie 2023

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We report the direct measurement of the persistent current carried by a single electron by means of magnetization experiments on self-assembled InAs/GaAs quantum rings. We measured the first Aharonov-Bohm oscillation at a field of 14 T, in perfect agreement with our model based on the structural properties determined by cross-sectional scanning tunneling microscopy measurements. The observed oscillation magnitude of the magnetic moment per electron is remarkably large for the topology of our nanostructures, which are singly connected and exhibit a pronounced shape asymmetry

Cuvinte-cheie
Engineering controlled terms Magnetization, molecular modeling, nanostructures, Oscillators (electronic), Scanning tunneling microscopy, Self assembly Engineering uncontrolled terms Aharonov-Bohm oscillations, quantum rings, Shape asymmetry, Single electron Engineering main heading Quantum theory