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Electronic Transmission Properties of Two-Dimensional Quasi-lattice |
| HOU Zhi-Lin;FU Xiu-Jun;LIU You-Yan |
| Department of Physics, South China University of Technology, Guangzhou 510640 |
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| Cite this article: |
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HOU Zhi-Lin, FU Xiu-Jun, LIU You-Yan 2002 Chin. Phys. Lett. 19 236-239 |
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Abstract In the framework of tight binding model, the electronic transmission properties of two-dimensional Penrose-lattices with free boundary condition are studied by using the generalized eigenfunction method [Phys. Rev. B 60(1999)13444]. The electronic transmission coefficients for Penrose lattices with different size and width are calculated, and the result shows strong energy dependence because of the quasi-periodic structure and quantum coherent effect. Around the Fermi level E = 0, there is an energy region with zero transmission amplidutes, which suggests that the studied systems are insulating. The spatial distributions of several typical electronic states with different transmission coefficient are plotted to display the propagation process.
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| Keywords:
61.44.Br
73.50.-h
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Published: 01 February 2002
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| PACS: |
61.44.Br
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(Quasicrystals)
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73.50.-h
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(Electronic transport phenomena in thin films)
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