Resonant magnetization tunnelling in the half-integer-spin single-molecule magnet [PPh4][Mn12O12(O2CEt)16(H2O)4]

Abstract

Steps are observed on the magnetization hysteresis loop for an oriented crystal sample of [PPh4][Mn12O12(O2CEt)16- (H2O)4] and these are taken as evidence for field-tuned resonant magnetization tunnelling between quantum levels of the S = 19/2 ground state.