The Generalization of the Kinetic Equations and the Spectral Conductivity Function to Anisotropic Systems: Case T-Al_72.5Mn_21.5Fe_6 Complex Metallic Alloy

Popčević, Petar and Batistić, Ivo and Tutiš, Eduard and Velebit, Kristijan and Heggen, Marc and Feuerbacher, Michael (2010) The Generalization of the Kinetic Equations and the Spectral Conductivity Function to Anisotropic Systems: Case T-Al_72.5Mn_21.5Fe_6 Complex Metallic Alloy. Croatica Chemica Acta, 83 (1). pp. 95-100. ISSN 0011-1643

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Abstract

Electrical conductivity, σ, and thermoelectric power, S, of the monocrystalline T-Al_72.5Mn_21.5Fe_6 complex metallic alloy have been investigated in the temperature range from 2 to 300 K. The crystallographic-direction-dependent measurements were performed along the [0 0 1], [0 1 0] and [1 0 0] directions of the orthorhombic unit cell, where the stacking direction is along the [0 1 0] direction. The electrical conductivity exhibits a very small anisotropy, and in all directions shows the non-metallic behaviour with square root, √T, temperature behaviour and finite value in the T = 0 limit. Spectral conductivity function, σS(E), constructed out of measurements, reflects anisotropy of the experimental data and indicate non-analytic square root like singularity at Fermi level. Asymmetry of the spectral conductivity function has been extracted from the thermoelectric power data.

Item Type: Article
Keywords: spectral conductivity function, anisotropic systems, transport coefficients, complex metallic alloys, Taylor phases
Date: 2010
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Project code: 035-0352826-2848, 119-1191458-0512, 035-0352826-2847
Publisher: Hrvatsko kemijsko društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 23 Apr 2014 19:04
Last Modified: 24 Feb 2016 15:44
URI: http://digre.pmf.unizg.hr/id/eprint/937

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