Abstract
The ordered perovskite compound Ba2PrRuO6 is prepared and itsmagnetic properties are investigated. The Rietveld analysis of the neutrondiffraction profiles measured at 150 K shows that the Pr3+ andRu5+ ions are arranged with regularity over the six-coordinateB sites of the perovskite ABO3 and that Ba2PrRuO6belongs to space group P21/n, with a = 6.0063(5), b = 5.9863(4),c = 8.4677(7) Å and 90.04(2)°. The magnetic susceptibility and theheat capacity measurements show that this compound transforms to anantiferromagnetic state below 117 K. From the neutron diffraction patternsmeasured at 7 K, the magnetic structure is determined to be of Type I and themagnetic moments of Pr3+ and Ru5+ are estimated to be2.2(1) and 2.0(2) µB, respectively. Their values are discussed on thebasis of theoretical calculations for the crystal field splitting.
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