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


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Аннотация

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 (ρp(T)) and in the quasi-periodic plane (ρq(T)). A strong anisotropy of the resistivity was observed; the ρp(T) curve is linear, whereas the ρq(T) curve is approximated well by a second-order polynomial. A strong anisotropy of the magnetoresistance was also observed; a positive magnetoresistance Δρ/ρ ~ 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.

Авторлар туралы

D. Shulyatev

National University of Science and Technology MISiS

Хат алмасуға жауапты Автор.
Email: shulyatev@mail.ru
Ресей, Leninskii pr. 4, Moscow, 119991

M. Klyueva

National University of Science and Technology MISiS

Email: shulyatev@mail.ru
Ресей, Leninskii pr. 4, Moscow, 119991

U. Devaradjan

Centre for High Pressure Research, School of Physics

Email: shulyatev@mail.ru
Үндістан, Tiruchirappalli, 620024

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