$S={5\over2}$反铁磁体CaFe $_{2}$ O $_{4}$中的孤自旋和带隙束缚态
Orphan spins and bound in-gap states in the $S={5\over2}$ antiferromagnet CaFe$_{2}$O$_{4}$
摘要：
CaFe $_{2}$ O $_{4}$是一种各向异性的$S={5\over 2}$反铁磁体，在低温下具有两个相互竞争的$A$（$\uparrow \uparrow \downarrow \downarrow$）和$B$（$\uparrow \downarrow \uparrow \downarrow$）磁序参数，它们被静态反相边界分开。中子衍射和体磁化率测量表明，这些边界附近的自旋是弱相关的，并携带一个未补偿的铁磁矩，可以调整与磁场。光谱测量发现，这些自旋与激发能量小于体磁自旋波的束缚，类似于孤立的自旋团簇的光谱。局域束缚孤立自旋分离的两个竞争的磁序参数在CaFe $_{2}$ O $_{4}$。
英文摘要：
CaFe$_{2}$O$_{4}$ is an anisotropic $S={5\over 2}$ antiferromagnet with two competing $A$ ($\uparrow \uparrow \downarrow \downarrow$) and $B$ ($\uparrow \downarrow \uparrow \downarrow$) magnetic order parameters separated by static antiphase boundaries at low temperatures. Neutron diffraction and bulk susceptibility measurements, show that the spins near these boundaries are weakly correlated and a carry an uncompensated ferromagnetic moment that can be tuned with a magnetic field. Spectroscopic measurements find these spins are bound with excitation energies less than the bulk magnetic spin-waves and resemble the spectra from isolated spin-clusters. Localized bound orphaned spins separate the two competing magnetic order parameters in CaFe$_{2}$O$_{4}$.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
