论文标题
两步磁性订购为铁磁单胶斜i $ _3 $ as $ _2 $中的倾斜状态
Two-step magnetic ordering into a canted state in ferrimagnetic monoclinic Mn$_3$As$_2$
论文作者
论文摘要
我们通过中子粉末衍射测量值报告了室温稳定，单斜型$ _3 $ _3 $的磁性结构为$ _2 $。从磁力测定数据中，Mn $ _3 $ as $ _2 $的Curie温度确认约为270K。量热法分析表明，在225 k处存在另一种过渡。在270 K，Mn $ _3 $ as $ _2 $中，在$ k = 0 $ k = 0 $ k = 0 $ ferrimagnetic Procesing in Magnation Appainting c2/m $ c2/m $ c2/m $ 58.＃12.Momm $ bom $ 58888888888888888888888888888888888888 18.＃12.MOMB $ 58.＃＃58 $ 58 $ 58。低于225 K，在$ AC $平面中有一定的MN矩，在太空群体$ C2/C $中产生了多$ K $非固定磁性结构（＃15.85）。 $ b $沿着$ k = 0 $订购的Mn矩的组件和$ a $ a $和$ c $的组件具有$ k = [0 0 \ frac {1} {2} {2}] $繁殖向量。温度下的磁接地状态变化提供了对控制Mn-As As化合物中磁有序的因素的更深入的了解。
We report the magnetic structure of room-temperature-stable, monoclinic Mn$_3$As$_2$ at 3 K and 250 K using neutron powder diffraction measurements. From magnetometry data, the Curie temperature of Mn$_3$As$_2$ was confirmed to be around 270 K. Calorimetry analysis showed the presence of another transition at 225 K. At 270 K, Mn$_3$As$_2$ undergoes a $k = 0$ ferrimagnetic ordering in the magnetic space group $C2/m$ (#12.58) with Mn moments pointing along $b$. Below 225 K, there is a canting of Mn moments in the $ac$ plane which produces a multi-$k$ non-collinear magnetic structure in space group $C2/c$ (#15.85). The components of Mn moments along $b$ follow $k=0$ ordering and the components along $a$ and $c$ have $k = [0 0 \frac{1}{2}]$ propagation vector. The change in the magnetic ground state with temperature provides a deeper insight into the factors that govern magnetic ordering in Mn-As compounds.
