Single crystal growth and characterization of the large-unit-cell compound Cu13Ba

Abstract

Single crystals of Cu${}_{13}$Ba were successfully grown out of Ba-Cu self flux. Temperature dependent magnetization, $M(T)$, electrical resistivity, $\rho (T)$, and specific heat, $C_p(T)$, data are reported. Isothermal magnetization measurements, $M(H)$, show clear de Haas-van Alphen oscillations at $T$ = 2 K for applied fields as low as ${\mu }_{0}H$ = 1T. An anomalous behavior of the magnetic susceptibility is observed up to $T$ ~ 50K reflecting the effect of de Haas-van Alphen oscillations at fairly high temperatures. The field- and temperature-dependencies of the magnetization indicate the presence of diluted magnetic impurities with a concentration of the order of 0.01at.%. Accordingly, the minimum and lower temperature rise observed in the electrical resistivity at and below $T$ = 15K is attributed to the Kondo impurity effect.

6 pages, 8 figures, accepted for publication in J. Alloys Compd

References in corpus (1)

• Discovery of a binary icosahedral quasicrystal in Sc${}_{1}2$Zn${}_{8}8$