Determination of the magnetic anisotropy axes of single-molecule magnets

Abstract

Simple methods are presented allowing the determination of the magnetic anisotropy axes of a crystal of a single-molecule magnet (SMM). These methods are used to determine an upper bound of the easy axis tilts in a standard Mn12-Ac crystal. The values obtained in the present study are significately smaller than those reported in recent high frequency electron paramagnetic resonance (HF-EPR) studies which suggest distributions of hard-axes tilts.

10 pages, 6 figures

References in corpus (2)

• Evidence for the S=9 excited state in Mn12-bromoacetate measured by electron paramagnetic resonance
• Observation of a Distribution of Internal Transverse Magnetic Fields in a Mn12-Based Single Molecule Magnet

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• Quantum phase interference and spin parity in Mn12 single-molecule magnets
• Resonant Tunneling in Truly Axial Symmetry Mn12 Single-Molecule Magnets: Sharp Crossover between Thermally Assisted and Pure Quantum Tunneling
• Quantum nucleation in a single-chain magnet
• Landau-Zener tunneling in the presence of weak intermolecular interactions in a crystal of Mn4 single-molecule magnets
• Long-range ferromagnetism of Mn12 acetate single-molecule magnets under a transverse magnetic field
• Observation of Cooperative Electronic Quantum Tunneling: Increasing Accessible Nuclear States in a Molecular Qudit
• Influence of the Dzyaloshinskii-Moriya exchange interaction on quantum phase interference of spins
• Field sweep rate dependence of the coercive field of single-molecule magnets: a classical approach with applications to the quantum regime
• Effects of uniaxial pressure on the quantum tunneling of magnetization in a high-symmetry Mn12 single-molecule magnet
• Dynamical Monte Carlo investigation of spin reversals and nonequilibrium magnetization of single-molecule magnets
• The Interplay of Single Ion Anisotropy and Magnetic 3d-4f Interactions in V${}_2^{\mathrm{III}}$Ln${}_2^{\mathrm{III}}$ Butterfly Complexes