Pressure dependence of the exchange interaction in the dimeric single-molecule magnet [Mn4O3Cl4(O2CEt)3(py)3]2 from inelastic neutron scattering

Abstract

The low-lying magnetic excitations in the dimer of single-molecule magnets (Mn4)2 are studied by inelastic neutron scattering as a function of hydrostatic pressure. The anisotropy parameters D and B04, which describe each Mn4 subunit, are essentially pressure independent, while the antiferromagnetic exchange coupling J between the two Mn4 subunits strongly depends on pressure, with an increase of 42% at 17 kbar. Additional pressure dependent powder X-ray measurements allow a structural interpretation of the findings.

arXiv comment4 pages, 4 figures, REVTEX4, to be published in PRB

References in corpus (6)

• Realization of Bose-Einstein condensation of dilute magnons in TlCuCl${}_3$
• Quantum Coherence in an Exchange-Coupled Dimer of Single-Molecule Magnets
• Quantum Coherence between High Spin Superposition States of Single Molecule Magnet Ni${}_4$
• DFT calculation of the intermolecular exchange interaction in the magnetic Mn${}_4$ dimer
• Mesoscopic quantum coherence in antiferromagnetic molecular clusters
• Pressure Dependence of the Magnetic Anisotropy in the "Single-Molecule Magnet" [Mn4O3Br(OAc)3(dbm)3]

Cited by in corpus (4)

• Giant pressure dependence and dimensionality switching in a metal-organic quantum antiferromagnet
• Effects of uniaxial pressure on the quantum tunneling of magnetization in a high-symmetry Mn12 single-molecule magnet
• The Unlocking of High-Pressure Science with Broadband Neutron Spectroscopy at the ISIS Pulsed Neutron & Muon Source
• The effect of uniaxial pressure on the magnetic anisotropy of the Mn_{12}-Ac single-molecule magnet