论文标题
用应变和电场的双层CRCL $ _ {3} $控制磁状态和自旋相互作用：
Control of magnetic states and spin interactions in bilayer CrCl$_{3}$ with strain and electric fields: an ab initio study
论文作者
论文摘要
利用从头算密度的功能理论（DFT），我们证明了通过机械应变和电场来控制双层Crcl $ _ {3} $的磁化地面特性的可能性。原则上，我们研究了这两个领域对描述系统旋转哈密顿量的参数的影响。获得的结果表明，双轴菌株改变了铁磁（FM）和抗铁磁（AFM）阶段之间的磁接地态。机械应变还会影响单轴磁各向异性（MAE）的方向和振幅。重要的是，在外部应变和电场下，dzyaloshinskii-moriya载体的方向和幅度也很高。最近的邻居相互作用，MAE和Dzyaloshinskii-Moriya相互作用之间的竞争会导致各种外来的自旋纹理和新型磁激发的稳定。外部磁场对磁性特性的高可调性使双层CRCL $ _ {3} $成为有前途的候选人，可在二维量子旋转和镁质的新兴领域中应用。
Using ab initio density functional theory (DFT), we demonstrated the possibility of controlling the magnetic ground-state properties of bilayer CrCl$_{3}$ by means of mechanical strains and electric fields. In principle, we investigated the influence of these two fields on parameters describing the spin Hamiltonian of the system. The obtained results show that biaxial strains change the magnetic ground state between ferromagnetic (FM) and antiferromagnetic (AFM) phases. The mechanical strain also affects the direction and amplitude of the uniaxial magnetic anisotropy (MAE). Importantly, the direction and amplitude of the Dzyaloshinskii-Moriya vectors are also highly tunable under external strain and electric fields. The competition between nearest neighbor interaction, MAE, and Dzyaloshinskii-Moriya interactions can lead to the stabilization of various exotic spin textures and novel magnetic excitations. The high tunability of magnetic properties by external fields makes bilayer CrCl$_{3}$ a promising candidate for application in the emerging field of two-dimensional quantum spintronics and magnonics.
