Electron Spin Resonance Study and Orbital Degeneracy of Potassium Clusters in Zeolite LTA
Electron Spin Resonance Study and Orbital Degeneracy of Potassium Clusters in Zeolite LTA
复制标题
LTA 沸石中钾簇的电子自旋共振研究和轨道简并性
DOI：
10.1143/jpsjs.71s.199
复制
发表时间：
2002
影响因子：
1.7
通讯作者：
Y. Nozue
中科院分区：
文献类型：
--
作者：
T. Nakano;Y. Ikemoto;Y. Nozue
电子自旋共振研究进行了稳定的钾簇在笼的铝硅酸盐沸石LTA，其中笼排列在一个简单的立方结构。每个团簇的平均s电子数n从0到饱和值n = 7.2有系统地变化。对于2< n的样品，当s电子占据K团簇的1 p态时，g值从2显著减小，表明1 p态的轨道简并性增强了自旋-轨道相互作用.同时，在2< n时观察到样品的铁磁性。铁磁性的起源被归因于1 p-态的轨道简并，随后相邻K团簇之间的Dzyaloshinsky-Moriya相互作用的增强。
Electron spin resonance studies are carried out for potassium clusters stabilized in cages of aluminosilicate zeolite LTA, where cages are arrayed in a simple cubic structure. The average number of s-electrons per cluster, n , is systematically changed from 0 to the saturated value of \cong7.2. For samples at 2< n , where s-electrons occupy the 1p-state of K cluster, the g value decreases remarkably from 2, indicating that an enhancement of the spin–orbit interaction occurs due to the orbital degeneracy of the 1p-state. Simultaneously, ferromagnetism is observed for samples at 2< n . The origin of the ferromagnetism is assigned to the orbital degeneracy of 1p-state followed by the enhancement of the Dzyaloshinsky–Moriya interaction between adjacent K clusters.
LTA 沸石中钾簇铁磁性的 μSR 研究
DOI：
--
发表时间：
2004
期刊：
Journal of Magnetism and Magnetic Materials 272-276
影响因子：
--
作者：
D.Kiniwa;T.Nakano;F.L.Pratt;I.Watanabe;Y.Ikemoto;Y.Nozue
通讯作者：
Y.Nozue