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Temperature-Dependent ac Conductivity of the Fibonacci Lattice |
DING Jian-wen1;YAN Xiao-hong1,2;FANG Xian-cheng1 |
1Department of Physics, Xiangtan University, Xiangtan 411105
2Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
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Cite this article: |
DING Jian-wen, YAN Xiao-hong, FANG Xian-cheng 1999 Chin. Phys. Lett. 16 529-531 |
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Abstract A new practical equation is derived from the Miller-Abrahams theory for different site-energies, and the temperature-dependent conductivity of Fibonacci lattice is calculated by a real-space renormalization-group approach. It is shown that there exist two types of temperature-dependent conductivity at low- and high-frequencies. Furthermore, it is found that the low-frequency conductivity oscillates dramatically with temperature.
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Keywords:
72.80.-r
61.44.Br
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Published: 01 July 1999
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