论文标题
在蜂蜜comply octa-和tetrahedrally协调的Mn $^{2+} $ ions中的磁各向异性和交换路径中
Magnetic anisotropy and exchange paths for octa- and tetrahedrally coordinated Mn$^{2+}$ ions in the honeycomb multiferroic Mn$_2$Mo$_3$O$_8$
论文作者
论文摘要
我们通过磁化，磁性扭矩和THZ吸收光谱测量值研究了极性Ferrimagnet Mn $ _2 $ MO $ $ _3 $ _3 $ _3 $ _3 $ _3 $ _3 $ _8 $的静态和动态磁性性能。自旋波共振的观察到的磁场依赖性，包括布里鲁因区域中心和区域基础激发，磁化强度和扭矩，通过扩展的两种公共反铁磁性经典模型很好地描述了。在这个轨道淬火的系统中，两个晶体学位点的竞争性弱易于平面和易于轴的单离子各向异性是由模型确定的，并分别通过摘要计算分别分配给四面体和八面体位点。
We investigated the static and dynamic magnetic properties of the polar ferrimagnet Mn$_2$Mo$_3$O$_8$ in three magnetically ordered phases via magnetization, magnetic torque, and THz absorption spectroscopy measurements. The observed magnetic field dependence of the spin-wave resonances, including Brillouin zone-center and zone-boundary excitations, magnetization, and torque, are well described by an extended two-sublattice antiferromagnetic classical mean-field model. In this orbitally quenched system, the competing weak easy-plane and easy-axis single-ion anisotropies of the two crystallographic sites are determined from the model and assigned to the tetra- and octahedral sites, respectively, by ab initio calculations.
