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

Feng, Hai L.; Yamaura, Kazunari; Tjeng, Liu-Hao; Jansen, Martin

doi:10.1016/j.jssc.2016.08.022

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

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Feng, Hai L.
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Tjeng, Liu-Hao
Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Jansen, Martin
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Feng, H. L., Yamaura, K., Tjeng, L.-H., & Jansen, M. (2016). The role of nonmagnetic d⁰ vs. d¹⁰ B-type cations on the magnetic exchange interactions in osmium double perovskites. Journal of Solid State Chemistry, 243, 119-123. doi:10.1016/j.jssc.2016.08.022.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-B99B-D

Abstract

Polycrystalline samples of double perovskites Ba2BOsO6 (B=Sc, Y, In) were synthesized by solid state reactions. They adopt the cubic double perovskite structures (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 Ba2BOsO6, -571 K for Ba2BOsO6, and -155 K for Ba2BOsO6.Sc3+ and Y3+ have the open-shell d(0) electronic configuration, while In3+ has the closed-shell d(10). This indicates that a d(0) B-type cation induces stronger overall magnetic exchange interactions in comparison to a d(10). Comparison of Ba2BOsO6 (B=Sc, Y, In) to their Sr and Ca analogues shows that the structural distortions weaken the overall magnetic exchange interactions. (C) 2016 Elsevier Inc. All rights reserved.