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arXiv · 2111.12015

Magnetic-cations doped into a Double Perovskite Semiconductor

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.

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Lun Jin, Danrui Ni, Xin Gui, Daniel B. Straus, Qiang Zhang, Robert J. Cava. 2021-11-23. Magnetic-cations doped into a Double Perovskite Semiconductor. https://doi.org/10.1039/d1tc05585b

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