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A-type antiferromagnetic order in semiconducting <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">EuMg</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Sb</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> single crystals
Eu-based Zintl-phase materials $\mathrm{Eu}{A}_{2}P{n}_{2}$ $(A=\mathrm{Mg},\mathrm{In},\mathrm{Cd},\mathrm{Zn};Pn=\mathrm{Bi},\mathrm{Sb},\mathrm{As},\mathrm{P})$ have generated significant recent interest owing to the complex interplay of magnetism and band topology. Here, we investigated the crystallographic, magnetic, and electronic properties of layered Zintl-phase single crystals of ${\mathrm{EuMg}}_{2}{\mathrm{Sb}}_{2}$ with the trigonal ${\mathrm{CaAl}}_{2}{\mathrm{Si}}_{2}$ crystal structure (space group $P\overline{3}m1$). Electrical resistivity measurements complemented with …