Edge-channel transport through quantum wires with a magnetic quantum dot

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We investigate the scattering of edge channels by a magnetic quantum dot. which is formed by two different magnetic fields B* and B-0 inside and outside the dot, respectively, in a quantum wire. We calculate the two-terminal conductance (G) of the wire and find that for gamma (=B*/B-0) > 0, G is quantized. while for gamma < 0 it is not quantized, This feature results from the different magnetic confinements, caused by nonuniform magnetic fields, between the two cases. (C) 2002 Elsevier Science B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2002-01
Language
English
Article Type
Article; Proceedings Paper
Keywords

STATES

Citation

PHYSICA E-LOW-DIMENSIONAL SYSTEMS NANOSTRUCTURES, v.12, no.1-4, pp.719 - 721

ISSN
1386-9477
DOI
10.1016/S1386-9477(01)00457-X
URI
http://hdl.handle.net/10203/22021
Appears in Collection
PH-Journal Papers(저널논문)
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