Title
Temperature dependence of the electronic transport in Al-Cu-Fe phases
Date Issued
15 December 2000
Access level
metadata only access
Resource Type
research article
Author(s)
Solbrig H.
Publisher(s)
Elsevier Sequoia SA
Abstract
The temperature dependences of the electronic conductivity and the thermoelectric power are theoretically examined for the i-Al-Cu-Fe (1/1) approximant in comparison with both crystalline ω-Al7Cu2Fe and amorphous Al84Fe16. Our study is based on ab initio results for the spectral curves which are obtained by means of the linear muffin-tin orbitals (LMTO) method and the Kubo-Greenwood formula. Thermopowers are calculated after the Mott formula. We show that a realistic variety of thermopower curves versus temperature results from small shifts of the Fermi energy in a narrow resistivity peak. A simple model of the energy-dependent resistivity is suggested which supports the interpretation of the thermopower curves.
Start page
600
End page
603
Volume
294-296
Language
English
OCDE Knowledge area
Ingeniería eléctrica, Ingeniería electrónica
Subjects
Scopus EID
2-s2.0-0034498053
Source
Materials Science and Engineering A
ISSN of the container
09215093
Sources of information:
Directorio de Producción Científica
Scopus