Original scientific paper

Anisotropic Transport Properties of the Al₁₃Fe₄ Decagonal Approximant

Petar Popčević orcid.org/0000-0001-5442-2370 ; Laboratory for the Physics of Transport Phenomena, Institute of Physics, Bijenička c. 46, P. O. Box 304, HR-10001 Zagreb, Croatia
Ana Smontara orcid.org/0000-0002-1504-2735 ; Laboratory for the Physics of Transport Phenomena, Institute of Physics, Bijenička c. 46, P. O. Box 304, HR-10001 Zagreb, Croatia
Janez Dolinšek ; Jožef Stefan Institute, University of Ljubljana, Jamova 39, SI-1000 Ljubljana, Slovenia
Peter Gille ; Ludwig-Maximilians-Universität München, Department of Earth and Environmental Sciences, Crystallography Section, Theresienstrasse 41, D-80333 München, Germany

Abstract

We have investigated electrical resistivity, thermoelectric power and thermal conductivity of the Al₁₃Fe₄ monoclinic approximant to the decagonal quasicrystal. The crystallographic-direction-dependent measurements were performed along the a*, b and c directions of the monoclinic unit cell, where (a*,c) atomic planes are stacked along the perpendicular b direction. The electronic transport exhibit significant anisotropy. The stacking b direction is the most conducting direction for the electricity and heat. The anisotropic thermopower reflects complicated structure of the anisotropic Fermi surface that contains electron-like and hole-like contributions.

Keywords

electrical resistivity; thermal conductivity; anisotropy; Al₁₃Fe₄; complex metallic alloys

Hrčak ID:

52243

URI

https://hrcak.srce.hr/52243

Publication date:

30.4.2010.

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