Geometric-symmetry consideration on magneto-conductance oscillations in purely ballistic quantum rings

We report an analysis of the magneto-conductance oscillations in two-dimensional mesoscopic ring structures with different geometric symmetry. In particular, we demonstrate that the h/2e magneto-conductance oscillations may be absent or present in purely ballistic quantum rings depending on their geometric symmetry. A detailed analysis of the results is carried out by expanding the transmission amplitudes with backscattering terms. The role of interchannel scattering, which is an essential element of multichannel ballistic transport, is stressed. (C) 2003 Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2003-12
Language
ENG
Keywords

NORMAL-METAL RINGS; TRANSPORT

Citation

SOLID STATE COMMUNICATIONS, v.128, no.11, pp.425 - 429

ISSN
0038-1098
URI
http://hdl.handle.net/10203/84678
Appears in Collection
EE-Journal Papers(저널논문)
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