论文标题

正交耦合的对称全磁磁连接处的基态和磁化

Ground states and magnonics in orthogonally-coupled symmetric all-antiferromagnetic junctions

论文作者

Li, Mei, Xi, Bin, He, Wei, Liu, Yongjun, Lu, Jie

论文摘要

在这项工作中,据报道,据报道,正交耦合的对称的全抗磁性连接具有易于平面各向异性的富含地下结构。旋转重新定位过程而不是传统的自旋失调(SF)发生,从而导致了一个新的阶段,其中NéelVectors保留了镜像反射对称性(称为``MRS阶段'')。SF和MRS阶段之间的阶段过渡可以是在型号中与第二阶相比,在不同的parness中,均可用不同的parnections。当DC场变成斜率时,出现了相反的平均值,导致共振频率的抗元素,但是,基于MRS阶段的旋转波是有线性的,它们的极性是良好的。

In this work, the rich ground-state structure of orthogonally-coupled symmetric all-antiferromagnetic junctions with easy-plane anisotropy is reported. Spin reorientation process rather than the traditional spin flop (SF) occurs, resulting in a novel phase in which Néel vectors preserve the mirror-reflection symmetry (termed as ``MRS phase"). The phase transitions between SF and MRS phases can be either the first- or second-order. After disturbed by external stimuli, magnons with different parities emerge. For in-plane dc fields, no couplings between magnons occur. When dc fields become oblique, coherent couplings between magnons with opposite parity emerge, leading to anticrossings in resonance frequencies. However, self-hybridization among magnons with the same parity never happens. More interestingly, spin waves based on MRS phase are linearly polarized and their polarization directions can be fine controlled.

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