EPR and magnetic quantum tunneling studies of the mixed valent Mn-4(anca)(4)(Hedea)(2)(edea)(2) center dot 2CHCl(3), EtOH single-molecule magnet
Abbreviated Journal Title
Single-molecule magnet; Electron Paramagnetic Resonance; Quantum; Tunneling of Magnetization; Magnetic anisotropy; LOW-DIMENSIONAL CONDUCTORS; Chemistry, Inorganic & Nuclear; Crystallography
High-frequency Electron Paramagnetic Resonance (EPR) and Quantum Tunneling of Magnetization (QTM) measurements have been carried out on single-crystal samples of a mixed-valent (Mn2Mn2III)-Mn-II single-molecule magnet (SMM). Frequency, temperature and field-oriented studies reveal an S = 9 spin ground state with low-lying excited spin states. Numerical simulations were performed via exact diagonalization of a multi-spin Hamiltonian, in which the anisotropy of the molecule is based on the anisotropy of the individual ions and their couplings. We found that the EPR and QTM spectra may adequately be explained with two s = 5/2 Mn-II ions weakly coupled to a rigid s = 4 spin, formed by the two ferromagnetically coupled Mn-III ions. (C) 2011 Elsevier Ltd. All rights reserved.
Article; Proceedings Paper
"EPR and magnetic quantum tunneling studies of the mixed valent Mn-4(anca)(4)(Hedea)(2)(edea)(2) center dot 2CHCl(3), EtOH single-molecule magnet" (2011). Faculty Bibliography 2010s. 1575.