论文标题
来自微波吸收实验的Van der waals Crsbr抗铁磁铁的微观参数
Microscopic parameters of the van der Waals CrSBr antiferromagnet from microwave absorption experiments
论文作者
论文摘要
使用相敏感的外部电阻检测进行的微波吸收实验是针对局部范德华抗铁磁铁CRSBR进行的。两种共振模式的场依赖性在平行于三个主要晶体学方向的施加场中测量，揭示了该材料中各向异性和磁过渡。为了解决观察到的结果，我们制定了具有双轴单离子各向异性和平面间交换的微观自旋模型。理论计算给出了完整的全镁光谱的出色描述，使我们能够精确确定CRSBR的微观相互作用参数。
Microwave absorption experiments employing a phase-sensitive external resistive detection are performed for a topical van der Waals antiferromagnet CrSBr. The field dependence of two resonance modes is measured in an applied field parallel to the three principal crystallographic directions, revealing anisotropies and magnetic transitions in this material. To account for the observed results, we formulate a microscopic spin model with a bi-axial single-ion anisotropy and inter-plane exchange. Theoretical calculations give an excellent description of full magnon spectra enabling us to precisely determine microscopic interaction parameters for CrSBr.
