Abstract
A series of double perovskite oxides, Ln2NaRuO6 (Ln=La, Pr, Nd), has been prepared as single crystals from acidic molten NaOH. All three oxides crystallize in the monoclinic space group P21/n (Glazer tilt system #10, a-a-b+), forming a 1:1 ordered rock salt lattice of the Na+ and Ru5+ cations. Magnetic susceptibility measurements show evidence of antiferromagnetic correlations at temperatures below 16, 10 and 8K for Ln2NaRuO6 (Ln=La, Pr, Nd), respectively.
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