${\mathrm{Li}}_2\mathrm{Sr}{\left[\mathrm{MnN}\right]}_2$ single crystals were successfully grown out of Li-rich flux. The crystal structure was determined by single-crystal x-ray diffraction and revealed almost linear $-\mathrm{N}-\mathrm{Mn}-\mathrm{N}-\mathrm{Mn}-$ chains as central structural motif. Tetragonal blocks of air and moisture-sensitive nitridomanganate were employed for electrical transport, heat capacity, and anisotropic magnetization measurements. Both the electronic and magnetic properties are most remarkable, in particular the linear increase of the magnetic susceptibility with temperature that is reminiscent of underdoped cuprate and Fe-based superconductors. Clear indications for antiferromagnetic ordering at $T_N=290$ K were obtained. Metallic transport behavior is experimentally observed in accordance with electronic band structure calculations.

中文翻译：

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Li2Sr[MnN]2：磁性有序的金属氮化物

${李}_2锶{\left[锰\right]}_2$ 单晶成功地从富锂助熔剂中生长出来。晶体结构由单晶 X 射线衍射确定，显示几乎线性$-\mathrm{N}-锰-\mathrm{N}-锰-$链作为中心结构主题。空气和湿度敏感的氮化锰酸盐的四方块被用于电传输、热容量和各向异性磁化测量。电子和磁性都是最显着的，特别是磁化率随温度的线性增加，这让人联想到低掺杂的铜酸盐和铁基超导体。反铁磁排序的明确指示${吨}_N=290$ 获得了 K。根据电子能带结构计算通过实验观察金属传输行为。