论文标题
$ 5D^1 $ double-perovskite sr $ _2 $ mgreo $ _6 $
Antiferromagnetic long-range order in $5d^1$ double-perovskite Sr$_2$MgReO$_6$
论文作者
论文摘要
双向月a $ _2 $ bb'o $ _6 $带有重型过渡金属离子在订购的b'站点上是一个重要的化合物系列，用于研究电子相关与自旋轨道耦合（SOC）之间的相互作用。在这里，我们准备了高质量的SR $ _2 $ MGREO $ _6 $粉末和单晶样品，并进行了非谐振和谐振型同步X射线X射线衍射实验，以研究其磁接地状态。通过结合磁化率和热容量测量值，我们得出结论，Sr $ _2 $ mgreo $ _6 $在低于$ \ sim $ 55 k的$ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim $ \ sim Q =（001）上，这与先前怀疑的自旋玻璃状态相反。我们的作品阐明了SR $ _2 $ MGREO $ _6 $中的磁性顺序，并将其作为候选系统，以寻找磁性八极订单和异国情调的自旋动力学。
The double-perovskite A$_2$BB'O$_6$ with heavy transition metal ions on the ordered B' sites is an important family of compounds to study the interplay between electron correlation and spin-orbit coupling (SOC). Here we prepared high-quality Sr$_2$MgReO$_6$ powder and single-crystal samples and performed non-resonant and resonant synchrotron x-ray diffraction experiments to investigate its magnetic ground state. By combining the magnetic susceptibility and heat capacity measurements, we conclude that Sr$_2$MgReO$_6$ exhibits a layered antiferromagnetic (AF) order at temperatures below $\sim$ 55 K with a propagation vector q = (001), which contrasts the previously suspected spin glass state. Our works clarify the magnetic order in Sr$_2$MgReO$_6$ and demonstrate it as a candidate system to look for magnetic octupolar orders and exotic spin dynamics.
