Effects of chemical pressure on the magnetic ground states of the osmate double perovskites SrCaCoOs O 6 and C a 2 CoOs O 6

@article{Morrow2015EffectsOC,
  title={Effects of chemical pressure on the magnetic ground states of the osmate double perovskites SrCaCoOs O 6 and C a 2 CoOs O 6},
  author={Ryan Morrow and Jiaqiang Yan and Michael A. McGuire and John W. Freeland and Daniel Haskel and Patrick M. Woodward},
  journal={Physical Review B},
  year={2015},
  volume={92},
  pages={094435}
}
The magnetic ground state in the double perovskite system Sr2-xCaxCoOsO6 changes from an antiferromagnet (x=0), to a spin glass (x=1), to a ferrimagnet (x=2) as the Ca content increases. Moreover, this crossover is driven by chemical pressure effects that control the relative strength of magnetic exchange interactions. The synthesis, crystal structure, and magnetism of SrCaCoOsO6 and Ca2CoOsO6 are investigated and compared with Sr2CoOsO6. Both compounds adopt a monoclinic crystal structure with… Expand
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