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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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Official URL: http://dx.doi.org/10.1103/physrevb.67.184206


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Abstract

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.


Item Type:Article
Additional Information:

©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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