Anisotropy of the electric transport properties of decagonal Al-Cu-Co(Fe) quasicrystals

作者：Shulyatev D A^*; Klyueva M V; Devaradjan U

来源：Physics of Metals and Metallography, 2016, 117(9): 883-888.

DOI：10.1134/S0031918X16070152

• decagonal quasicrystals
• electron transport
• anisotropy
• magnetoresistance

The method of growth from a melt solution was used to obtain iron-alloyed (0.08 at %) Al-Cu-Co single crystals with a decagonal symmetry. The temperature dependences of the electrical resistivity in magnetic fields of 0-18 T were measured using samples oriented in the periodic direction (rho (p) (T)) and in the quasi-periodic plane (rho (q) (T)). A strong anisotropy of the resistivity was observed; the rho (p) (T) curve is linear, whereas the rho (q) (T) curve is approximated well by a second-order polynomial. A strong anisotropy of the magnetoresistance was also observed; a positive magnetoresistance Delta rho/rho similar to 10(-3) for the current flowing in the quasiperiodic plane; and a weak (close to zero) negative magnetoresistance for the current flowing along the periodic direction.

• 出版日期2016-9