Popčević, Petar; Smontara, Ana; Dolinšek, Janez; Gille, Peter
Anisotropic transport properties of the Al13Fe4 decagonal approximant.
In: Croatica Chemica Acta, Vol. 83, No. 1: pp. 101-105
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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.