Temperature-dependent ac conductivity of the Fibonacci lattice

Authors
Ding, JW Yan, XH Fang, XC
Citation
Jw. Ding et al., Temperature-dependent ac conductivity of the Fibonacci lattice, CHIN PHYS L, 16(7), 1999, pp. 529-531
Citations number
23
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
16
Issue
7
Year of publication
1999
Pages
529 - 531
Database
ISI
SICI code
0256-307X(1999)16:7<529:TACOTF>2.0.ZU;2-Q
Abstract
A new practical equation is derived from the Miller-Abrahams theory for dif ferent site-energies, and the temperature-dependent conductivity of Fibonac ci 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-frequen cy conductivity oscillates dramatically with temperature.