论文标题
h-ymno $ _3 $中的抗磁磁性旋转倾斜和磁性多物
Antiferromagnetic spin canting and Magnetoelectric Multipoles in h-YMnO$_3$
论文作者
论文摘要
六边形ymno $ _ {3} $是一种原型抗fiferromagnet，在不同温度下发生的铁电和磁过渡表现出多种表现。我们在该材料的单个晶体中观察到Mn $^{3+} $磁矩的平面外倾斜。这些倾斜的力矩导致对称性孔（0,0,1）磁性布拉格反射，在Mn $ L_ {2,3} $吸收边缘观察到。我们还观察到在不同温度下的RXD光谱形状出乎意料的差异。使用从头算计算，我们探讨了这种行为的可能性，这是由于倾斜磁矩的散射与Mn $^{3+} $ ions上的奇异原子多物之间的干扰。
Hexagonal YMnO$_{3}$ is a prototype antiferromagnet which exhibits multiferroic behavior with the ferroelectric and magnetic transitions occurring at different temperatures. We observe an out-of-plane canting of the Mn$^{3+}$ magnetic moments using resonant X-ray diffraction (RXD) in a single crystal of this material. These canted moments result in the symmetry-forbidden (0,0,1) magnetic Bragg reflection, which is observed at the Mn $L_{2,3}$ absorption edges. We also observe an unexpected difference in the RXD spectral shapes at different temperatures. Using ab initio calculations, we explore the possibility that this behavior arises due to the interference between scattering from the canted magnetic moments and parity-odd atomic multipoles on the Mn$^{3+}$ ions.
