Single-Molecule Magnets: High-Field Electron Paramagnetic Resonance Evaluation of the Single-Ion Zero-Field Interaction in a Zn3Ni Complex

Simple item page
dc.creatorYang, En-Che
dc.creatorKirman, Cem
dc.creatorLawrence, Jon
dc.creatorZakharov, Lev N.
dc.creatorRheingold, Arnold L.
dc.creatorHill, Stephen
dc.creatorHendrickson, David N.
dc.date2005-02-23
dc.date.accessioned2026-07-07T03:03:52Z
dc.date.available2026-07-07T03:03:52Z
dc.descriptionHigh-field electron paramagnetic resonance (HFEPR) spectra were collected at several frequencies for single crystal [Zn3.91Ni0.09(hmp)4(dmb)4Cl4] (1), where dmb is 3,3-dimethyl-1-butanol and hmp is the monoanion of 2-hydroxymethylpyridine. This crystal is isostructural to [Ni4(hmp)4(dmb)4Cl4] (2), which has been characterized to be a single-molecule magnet (SMM) with fast quantum tunneling of its magnetization (QTM). The single NiII ion zero-field-splitting (zfs) parameters D [= -5.30(5) cm-1] and E [= +/-1.20(2) cm-1] in the doped complex 1 were evaluated by rotation of a crystal in three planes. The easy-axes of magnetization associated with the single-ion zfs interactions were also found to be tilted 15 degrees away from the crystallographic c-direction. This inclination provides a possible explanation for the fast QTM observed for complex 2. The single-ion zfs parameters are then related to the zfs parameters for the Ni4 molecule by irreducible tensor methods to give D = -0.69 cm-1 for the S = 4 ground state of the SMM, where the axial zfs interaction is given by DSz2.
dc.descriptionSupplementary figures at: http://www.phys.ufl.edu/~hill/research/ICfigs.pdf
dc.identifierhttps://arxiv.org/abs/cond-mat/0502564
dc.identifierhttp://arxiv.org/abs/cond-mat/0502564
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25917
dc.subjectMesoscale and Nanoscale Physics
dc.titleSingle-Molecule Magnets: High-Field Electron Paramagnetic Resonance Evaluation of the Single-Ion Zero-Field Interaction in a Zn3Ni Complex
dc.typetext

Files

Collections

arXiv