随着单离子磁体的蓬勃发展，研究人员发现即使当配合物的基态自旋为低自旋(S = 1/2)，仍可以表现慢磁弛豫行为。这类配合物在量子信息处理方面(QIP)方面具有较大的应用潜能，因此得到了众多研究者的关注。对于过渡金属配合物，配体的选择影响中心金属离子的电子结构，进而影响其慢磁弛豫行为及量子相干性质。本文结合近年来的研究成果，对低自旋配合物的慢磁弛豫行为进行了阐述，分析了其弛豫行为来源，并对弛豫机理进行总结，为量子比特的设计提供思路。
With the rapid development of single ion magnets, researchers found that a few of complexes even with low-spin (S = 1/2) ground state spin can still exhibit slow magnetic relaxation behavior. Owing to their great potential in quantum information processing (QIP), these complexes have attracted many researchers’ attention. For transition metal complexes, the ligands coordinating to the transition metals have great impact on the electronic structure of central metal ions, and then significantly affect the slow magnetic relaxation behavior and quantum coherence properties. Based on the recent research, this paper describes the slow magnetic relaxation behavior in low-spin complexes. Moreover, we have analyzed the origin of the relaxation behavior and summarized the relaxation mechanism in these complexes, which will provide new routes in the design of quantum qubit.