The correlated anion order in the oxynitride perovskite NdVO(2)N, where disordered zig-zag VN chains segregate into planes within a pseudo-cubic lattice, is similar to that in materials such as SrTaO(2)N containing d(0) transition metal cations. However, NdVO(2)N has 3d(1) V(4+) cations and the 3d-electrons are itinerant, showing that the anion chain order in oxynitride perovskites is robust to electron-doping.
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Oró‐Solé et al. (2013) studied this question.
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