摘要
用Racah＝Judd可不约张量方法研究f^N电子构型离子，给出了弱场处理稀土和锕系离子配位场理论的一般方法。
The mothod of the Judd-Racah' s irreducible tensor are used to the Hamiltonian of the Configuration f^N ions. These rescats will be useful to study the properties of f^N ions in cryseal field.
