Single crystal growth and structural properties of iron telluride doped with nickel

We report the single crystal growth of Fe1.1-xNixTe with nominal compositions x = 0.01, 0.025, 0.05 and 0.1 using a slow cooled melt technique. Cylindrical crystals 0.5 cm in diameter and 2 cm long were obtained. The initial characterization, done using single-crystal diffractometer, revealed that the lattice parameter a increases and c decreases with Ni content. The crystal structure refinement was performed in the P4/nmm space group. Chemical analysis confirmed the presence of nickel in the system close to the nominal content. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim