Abstract
We have investigated the anisotropic Hall effect of the o-Al13Co4orthorhombic approximant to the decagonal phase. Thecrystalline-direction-dependent measurements were Performed along the a,b and c direction of the orthorhombic Unit cell. The Hall all effect hasbeen measured for all the combinations of the electrical current andmagnetic field directions. The Hall coefficients RI, change with thecrystallographic direction from negative electron-like or zero topositive hole-like for different combinations of the current and fielddirections. The results for the anisotropy of R-n is well correlatedwith the anisotropy of Rn in the d-Al-Ni-Co and d-Al-Cu-Coquasicrystals. The Hall coefficients of the o-Al13Co4 phase werecompared to the literature data on single crystals of the Al76Co22Ni2and the Al80Cr15Fe5 approximants to the decagonal quasicrystals.allowing I study of the evolution of the Hall coefficient with anincreasing structural complexity and unit-cell size.
Item Type: | Journal article |
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Faculties: | Geosciences > Department of Earth and Environmental Sciences > Crystallography and Materials Science |
Subjects: | 500 Science > 550 Earth sciences and geology |
Language: | English |
Item ID: | 18764 |
Date Deposited: | 10. Mar 2014, 14:14 |
Last Modified: | 29. Apr 2016, 09:15 |