Antiferromagnetic ordering in the double perovskites La2-xSrxCoRuO6

作者：Dlouha M; Hejtmanek J; Jirak Z^*; Knizek K; Tomes P; Vratislav S

来源：Journal of Magnetism and Magnetic Materials, 2010, 322(9-12): 1189-1191.

DOI：10.1016/j.jmmm.2009.06.035

• Double perovskite
• Electric transport
• Magnetic structure
• Neutron diffraction

The electric transport and magnetic susceptibility of double perovskites La-2 xSrxCoRuO6 have been studied over a temperature range up to 800-1000K. The crystal and magnetic structure has been determined by neutron diffraction on two samples of the series, x = 0.6 and 1.4, which represent the electron- and hole-doped systems with respect to "ideal'' single-valent insulator x=1. The study shows that spins in both the Co and Ru f. c. c. like sublattices exhibit a long-range ordering of the antiferromagnetic type II (T-N = 60 K for x = 0.6 and T-N = 60-80 K for x = 1.4).

• 出版日期2010-6