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Magnetic-cations doped into a Double Perovskite Semiconductor

Materials Science 2023-01-24 v1
Authors: Lun Jin , Danrui Ni , Xin Gui , Daniel B. Straus , Qiang Zhang , Robert J. Cava
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Abstract

We report two solid solutions based on magnetic ion doping of the double perovskite oxide Sr2GaSbO6: Sr2Ga1-xCrxSbO6 (0.1 < x < 0.4) and Sr2Ga1-xFexSbO6 (0.1 < x < 0.4). All compositions crystallize in the same space group (I4/m) as their undoped parent phase Sr2GaSbO6, with the trivalent magnetic cations Cr3+ or Fe3+ partially substituting for non-magnetic Ga3+ in one of the B-cation sites. The Cr- and Fe-doped phases display dominant antiferromagnetic coupling among the dopant magnetic moments, and exhibit decreasing band gaps with increasing substitution level.

Keywords

doped magnetic materials perovskite magnetism doping in semiconductors

Cite

@article{arxiv.2111.12015,
  title  = {Magnetic-cations doped into a Double Perovskite Semiconductor},
  author = {Lun Jin and Danrui Ni and Xin Gui and Daniel B. Straus and Qiang Zhang and Robert J. Cava},
  journal= {arXiv preprint arXiv:2111.12015},
  year   = {2023}
}

Comments

22 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:2109.10405

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