Analytical expressions for the transport coefficients of icosahedral quasicrystals



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Landauro, C.V. and Maciá Barber, Enrique Alfonso and Solbrig, H. (2003) Analytical expressions for the transport coefficients of icosahedral quasicrystals. Physical review B, 67 (18). ISSN 1098-0121

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We investigate by analytical means the electronic transport properties of approximants and quasicrystals. The spectral resistivity is modeled by Lorentz functions in agreement with realistic ab initio calculations (linear muffin-tin orbital basis, Kubo-Greenwood formula) for low-order approximants. The analytical expressions for the transport coefficients compare well with both numerical calculations and experiments. Thus, the temperature-dependent conductivity, thermopower, electronic thermal conductivity, and Lorenz number of certain approximants and quasicrystals can be consistently explained.

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©2003 The American Physical Society.
We are grateful to A. Löoser, and T. Schmidt for useful discussions. This work was supported by the Deutsche Forschungsgemeinschaft.

Uncontrolled Keywords:Al-Cu-Fe; Metal-insulator-transition; Density-of-states; Quasi-crystals; Electronic-structure; Band-structure; Electrical-conductivity; Anderson transition; Thin-films; Pd-Re
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:44772
Deposited On:02 Nov 2017 12:51
Last Modified:02 Nov 2017 15:48

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