单分子磁体(英文)

Single Molecule Magnets

单分子磁体指的是那些在阻塞温度以下出现磁化强度慢弛豫的分子。自从1993年报道了第一例单分子磁体[Mn12O12(O2CCH3)16(H2O)4]·4H2O·2CH3CO2H(Mn12)以来,人们在探索新颖的单分子磁体及其在信息存储、自旋电子学和量子计算等方面的潜在应用方面付出了极大的努力,已经合成得到许多具有单分子磁体性质的单核和多核金属簇合物。本文将重点介绍基于氧桥联的锰或铁簇合物、单核过渡金属化合物以及稀土配合物的单分子磁体。

Single molecule magnets （SMMs） refer to those molecules that show slow relaxation of magnetization below a characteristic blocking temperature （TB）. Since the first report of SMM behavior in [Mn12O12（O2CCH3）16（H20）4] · 4H2O - 2CH3CO2H （Mnl2） in 1993, great efforts have been devoted to the exploration of new SMMs and their potential applications in the information storage, spintronics and quantum computing etc. A number of mononuclear and polynuclear metal clusters have been discovered to show SMM behaviors. In this review, we focus on the SMMs of oxo-bridged Mn and Fe clusters, 3d single ion magnets and lanthanide-based SMMs.