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Interplay of size and Landau quantizations in the de Haas–van Alphen oscillations of metallic nanowires
journal contribution
posted on 2009-02-19, 14:07 authored by A.S. Alexandrov, V.V. Kabanov, I.O. ThomasWe examine the interplay between size quantization and Landau quantization in the de Haas–van Alphen
oscillations of clean metallic nanowires in a longitudinal magnetic field for “hard” boundary conditions, i.e.,
those of an infinite round well, as opposed to the “soft” parabolically confined boundary conditions previously
treated in Alexandrov and Kabanov AK Phys. Rev. Lett. 95, 076601 2005 . We find that there exist two
fundamental frequencies as opposed to the one found in bulk systems and the three frequencies found by AK
with soft boundary counditions. In addition, we find that the additional “magic resonances” of AK may also be
observed in the infinite well case, though they are now damped. We also compare the numerically generated
energy spectrum of the infinite well potential with that of our analytic approximation, and compare calculations
of the oscillatory portions of the thermodynamic quantities for both models.
History
School
- Science
Department
- Physics
Citation
ALEXANDROV, A.S., KABANOV, V.V. and THOMAS, I.O., 2007. Interplay of size and Landau quantizations in the de Haas–van Alphen oscillations of metallic nanowires. Physical Review B, 76(15), 155417 pp. 1-9.Publisher
© American Physical SocietyVersion
- VoR (Version of Record)
Publication date
2007Notes
This article has been published in the journal, Physical Review B [© American Physical Society]. The definitive version is available at: http://link.aps.org/doi/10.1103/PhysRevB.76.155417ISSN
1098-0121Language
- en