Oscillatory persistent currents in nano-volcanoes

N.A.J.M. Kleemans, I.M.A. Bominaar-Silkens, V. Fomin, V.N. Gladilin, D. Granados, A.G. Taboada, J.M. Garcia, P. Offermans, U. Zeitler, P.C.M. Christianen, J.C. Maan, J.T. Devreese, J.H. Wolter, P.M. Koenraad

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Using an ultra sensitive torque magnetometer we performed magnetic moment measurements on a sample contg. 29 layers of self-assembled InAs/GaAs quantum rings. These strongly non-ideal rings, in fact they more resembling nanovolcanoes, show a surprisingly high magnetic moment signal corresponding to a single electron persistent current of about 0.2µA. The predictions of our theor. model, based solely on X-STM measurements, is in good agreement with our expts. [on SciFinder (R)]
Original languageEnglish
Title of host publicationPhysics of Semiconductors, 28th Conference
EditorsW. Jantsch, F. Schäffler
PublisherAmerican Institute of Physics
Pages683-684
ISBN (Print)978-0-7354-0397-0
DOIs
Publication statusPublished - 2007
Eventconference; AIP Conference -
Duration: 1 Jan 2007 → …

Publication series

NameAIP Conference Proceedings
Volume893
ISSN (Print)0094-243X

Conference

Conferenceconference; AIP Conference
Period1/01/07 → …
OtherAIP Conference

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