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Polycrystalline samples of double perovskites Ba2BOsO6 (B = Sc, Y, In) weresynthesized by solid state reactions. They adopt the cubic double perovskitestructures (space group, Fm-3m) with ordered B and Os arrangements. Ba2BOsO6 (B= Sc, Y, In) show antiferromagnetic transitions at 93 K, 69 K, and 28 K,respectively. The Weiss-temperatures are -590 K for Ba2ScOsO6, -571 K forBa2YOsO6, and -155 K for Ba2InOsO6. Sc3+ and Y3+ have the open-shell d0electronic configuration, while In3+ has the closed-shell d10. This indicatesthat a d0 B-type cation induces stronger overall magnetic exchange interactionsin comparison to a d10. Comparison of Ba2BOsO6 (B = Sc, Y, In) to their Sr andCa analogues shows that the structural distortions weaken the overall magneticexchange interactions.

The role of nonmagnetic d0 vs. d10 B-type cations on the magnetic exchange interactions in osmium double perovskites