Edge-channel transport through quantum wires with a magnetic quantum dot
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
- Appears in Collection
- PH-Journal Papers(저널논문)
- Files in This Item
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