论文标题
kagome材料sr-vesignieite中的倾斜抗铁磁序
Canted Antiferromagnetic Order in the Kagome Material Sr-Vesignieite
论文作者
论文摘要
We report $^{51}$V NMR, $μ$SR and zero applied field $^{63,65}$Cu NMR measurements on powder samples of Sr-vesignieite, SrCu$_3$V$_2$O$_8$(OH)$_2$, a $S = 1/2$ nearly-kagome Heisenberg antiferromagnet.我们的结果表明，基态是$ \ mathbf {q} = 0 $磁性结构，旋转倾斜或从kagome平面倾斜，从而导致弱铁磁剂。我们确定有序矩的大小和针对不同可能的$ \ mathbf {q} = 0 $结构和轨道场景的角度，从而洞悉了dzyaloshinskii-moriya（dm）在此材料中相互作用的作用。
We report $^{51}$V NMR, $μ$SR and zero applied field $^{63,65}$Cu NMR measurements on powder samples of Sr-vesignieite, SrCu$_3$V$_2$O$_8$(OH)$_2$, a $S = 1/2$ nearly-kagome Heisenberg antiferromagnet. Our results demonstrate that the ground state is a $\mathbf{q} = 0$ magnetic structure with spins canting either in or out of the kagome plane, giving rise to weak ferromagnetism. We determine the size of ordered moments and the angle of canting for different possible $\mathbf{q} = 0$ structures and orbital scenarios, thereby providing insight into the role of the Dzyaloshinskii-Moriya (DM) interaction in this material.
