'Spin Tweaking' of a High-Spin Molecule:An Mn_(25) Single-Molecule Magnet with an S=61/2 Ground State

摘要

Polynuclear 3d metal complexes are of interest for various reasons,one of which is the possibility that they might exhibit high-spin (S) ground states and easy-axis-type magnetic anisotropy.Such molecules often have a significant energy barrier (vs kT,where k is the Boltzmann constant) to reversal of the magnetization (magnetic moment) vector,and thus at sufficiently low temperatures the molecules function as nanoscale magnetic particles.