Observation of a very large internal hyperfine field (62.4 T) in the ferromagnetically ordered state of the S = 1 alpha-iron(II) octaethyltetraazaporphyrin.
Observation of a very large internal hyperfine field (62.4 T) in the ferromagnetically ordered state of the S = 1 alpha-iron(II) octaethyltetraazaporphyrin.
复制标题
在 S = 1 α-铁 (II) 八乙基四氮杂卟啉的铁磁有序状态下观察到非常大的内部超精细场 (62.4 T)。
作者：
W. Reiff;C. Frommen;G. T. Yee;S. Sellers
根据已有的物理理论，半定量地讨论了三维(弱)铁磁有序基态α-Fe(OETAP)的超大内部超精细场(62.4T)的起源。特别是，经典的费米接触对内场的贡献被发现被一个非常大的轨道贡献和一个相同符号的显著偶极项大大增强。文中还给出了这个S=1非Kramers系统意外有序化的理论基础。
The origins of the extraordinarily large internal hyperfine field (62.4 T) for the three-dimensional (weak) ferromagnetically ordered ground state of alpha-Fe(OETAP) are discussed semiquantitatively in terms of existing physical theory. In particular, the classical Fermi-contact contribution to the internal field is found to be highly enhanced by a very large orbital contribution and a significant dipolar term of the same sign. A rationale for the unexpected ordering of this S = 1 non-Kramers system is also presented.