论文标题
链条Ferrate Na2fese中的多极订单
Multipole Orders in a Chain Ferrate Na2FeSe
论文作者
论文摘要
Na2fese2中磁性型多物的基本块和交错阶的对称性和磁电特性分类。我们的结构模型结合了链之间的铁磁或抗铁磁耦合。高度相关电子的研究是唯一已知具有链链的结构单元的硒化铁中的盐研究中的价值。由于Fe离子在母体K2ZNO2型化合物中表现出对映射的对称性，因此轴向和极性（DIRAC）多物在电子结构中是强制性的。中子和X射线的计算得出的Bragg衍射模式揭示了两种多物类型的特定贡献。
Fundamental block and staggered orders of magnetic Fe multipoles in Na2FeSe2 are classified by their symmetry and magnetoelectric properties. Our structure model incorporates ferromagnetic or antiferromagnetic coupling between chains. The ferrate salt is valued in studies of highly correlated electrons as the only iron selenide known to possess chain-like structural units hosting ferrous cations. Axial and polar (Dirac) multipoles are compulsory in the electronic structure since Fe ions exhibit enantiomorphic symmetry in the parent K2ZnO2-type compound. Calculated Bragg diffraction patterns for neutrons and x-rays reveal specific contributions from both multipole types.
