Abstract
One often counts the nearest neighbouring (NN) exchange interactions for understanding of a magnetic insulator. Here we present first-principles calculations for the newly synthesized double perovskites Sr2NiIrO6 and Sr2ZnIrO6, and we find that the 2NN Ir-Ir antiferromagnetic coupling is even stronger than the 1NN Ni-Ir ferromagnetic one. Thus, the leading antiferromagnetic interactions in the fcc Ir sublattice give rise to a magnetic frustration. Sr2NiIrO6 and Sr2ZnIrO6 hence appear very similarly as a distorted low-temperature antiferromagnet (probably, of type III). This work highlights the long-range magnetic interactions of the delocalized 5d electrons, and it also addresses why the spin-orbit coupling is ineffective here.
Highlights
ERRATUM: Long-range magnetic interaction and frustration in double perovskites Sr2NiIrO6 and Sr2ZnIrO6
Xuedong Ou1, Zhengwei Li1, Fengren Fan1, Hongbo Wang1 & Hua Wu1,2
In the original version of the Article, the first affiliation ‘Laboratory for Computational Physical Sciences (MOE), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, China’ was omitted for author Hua Wu. This has been corrected in both the HTML and PDF versions of the Article.
Summary
ERRATUM: Long-range magnetic interaction and frustration in double perovskites Sr2NiIrO6 and Sr2ZnIrO6
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