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Factors Governing the Propagation Direction and Spin-Rotation Plane of Noncollinear Magnetic Structures: A Helix vs Cycloid in Doubly Ordered Perovskites NaYMnWO6 and NaYNiWO6
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-10-04 , DOI: 10.1021/acs.inorgchem.1c02501 Ravi Shankar P N 1 , Fabio Orlandi 2 , Pascal Manuel 2 , Hyun-Joo Koo 3 , Myung-Hwan Whangbo 3, 4 , Athinarayanan Sundaresan 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-10-04 , DOI: 10.1021/acs.inorgchem.1c02501 Ravi Shankar P N 1 , Fabio Orlandi 2 , Pascal Manuel 2 , Hyun-Joo Koo 3 , Myung-Hwan Whangbo 3, 4 , Athinarayanan Sundaresan 1
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The magnetic structure of NaYMnWO6 was determined by neutron powder diffraction measurements. Below 9 K, the magnetic structure is a helix to wave vector k = (0, 0.447, 1/2), in contrast with NaYNiWO6, which shows a transverse spin density wave with k = (0.47, 0, 0.49). By analyzing the differences in the spin exchanges of NaYMnWO6 and NaYNiWO6, and in the magnetic anisotropies of the Mn2+ (d5, S = 5/2) and the Ni2+ (d2, S = 1) ions, we show what factors govern the propagation direction of a noncollinear magnetic structure and whether it becomes a helix or a cycloid.
中文翻译：
控制非共线磁性结构的传播方向和自旋旋转平面的因素：双有序钙钛矿 NaYMnWO6 和 NaYNiWO6 中的螺旋与摆线
NaYMnWO 6的磁性结构通过中子粉末衍射测量确定。低于 9 K，磁结构是波矢量k = (0, 0.447, 1 / 2 )的螺旋，与 NaYNiWO 6形成对比，后者显示k = (0.47, 0, 0.49)的横向自旋密度波。通过分析NaYMnWO 6和NaYNiWO 6的自旋交换以及Mn 2+ ( d 5 , S = 5 / 2 )和Ni 2+ ( d 2 ,S = 1) 离子，我们展示了哪些因素决定了非共线磁性结构的传播方向，以及它是变成螺旋线还是摆线。
更新日期：2021-10-18
中文翻译：
控制非共线磁性结构的传播方向和自旋旋转平面的因素：双有序钙钛矿 NaYMnWO6 和 NaYNiWO6 中的螺旋与摆线
NaYMnWO 6的磁性结构通过中子粉末衍射测量确定。低于 9 K，磁结构是波矢量k = (0, 0.447, 1 / 2 )的螺旋，与 NaYNiWO 6形成对比，后者显示k = (0.47, 0, 0.49)的横向自旋密度波。通过分析NaYMnWO 6和NaYNiWO 6的自旋交换以及Mn 2+ ( d 5 , S = 5 / 2 )和Ni 2+ ( d 2 ,S = 1) 离子，我们展示了哪些因素决定了非共线磁性结构的传播方向，以及它是变成螺旋线还是摆线。
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