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Quantized Magnetic Confinement in Quantum Wires
University of Dusseldorf.
University of Dusseldorf.
University of Dusseldorf.
University of Dusseldorf.
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2010 (English)In: PHYSICAL REVIEW LETTERS, ISSN 0031-9007, Vol. 104, no 18, 186801- p.Article in journal (Refereed) Published
Abstract [en]

Ballistic quantum wires are exposed to longitudinal profiles of perpendicular magnetic fields composed of a spike and a homogeneous part. An asymmetric magnetoconductance peak as a function of the homogeneous magnetic field is found, comprising quantized conductance steps in the interval where the homogeneous magnetic field and the magnetic barrier have identical polarities, and a characteristic shoulder with several resonances in the interval of opposite polarities. The observations are interpreted in terms of inhomogeneous diamagnetic shifts of the quantum wire modes leading to magnetic confinement.

Place, publisher, year, edition, pages
American Physical Society , 2010. Vol. 104, no 18, 186801- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-56521DOI: 10.1103/PhysRevLett.104.186801ISI: 000277417500040OAI: diva2:320072
Original Publication: A Tarasov, S Hugger, Hengyi Xu, M Cerchez, T Heinzel, Igor Zozoulenko, U Gasser-Szerer, D Reuter and A D Wieck, Quantized Magnetic Confinement in Quantum Wires, 2010, PHYSICAL REVIEW LETTERS, (104), 18, 186801. Copyright: American Physical Society Available from: 2010-05-21 Created: 2010-05-21 Last updated: 2010-05-29

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