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Quantum Waveguide Properties of Bethe Lattices with a Ring |
| LIN Zhi-Ping1,2, HOU Zhi-Lin2, LIU You-Yan2 |
| 1Department of Physics, Guangdong University of Technology, Guangzhou 5100902Department of Physics, South China University of Technology, Guangzhou 510640 |
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| Cite this article: |
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LIN Zhi-Ping, HOU Zhi-Lin, LIU You-Yan 2008 Chin. Phys. Lett. 25 4105-4108 |
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Abstract Based on waveguide theory we investigate electronic transport properties of Bethe lattices with a mesoscopic ring threaded by a magnetic flux. The generalized eigen-function method (GEM) is used to calculate the transmission and reflection coefficients up to the fifth generation of Bethe lattices. The relationships among the transmission coefficient T, magnetic flux Φ and wave vector kl are investigated in detail. The numerical results are shown by the three-dimensional plots and contour maps. Some resonant-transmission features and the symmetry of the transmission coefficient T to flux Φ are observed and discussed.
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| Keywords:
73.23.Ad
73.50.-h
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Received: 16 April 2008
Published: 25 October 2008
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| PACS: |
73.23.Ad
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(Ballistic transport)
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73.50.-h
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(Electronic transport phenomena in thin films)
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