Experimental determination of the dipolar field in Mn12-acetate

Abstract

Crystals of the molecular magnet Mn12-acetate are known to contain a small fraction of low- symmetry (minor) species with a small anisotropy barrier against spin reversal. The lower barrier leads to faster magnetic relaxation and lower coercive field. We exploit the low coercive fields of the minor species to make a direct determination of the dipole field in Mn12-ac. We find that the dipolar field of a fully magnetized crystal is 51.5 \pm 8.5 mT, consistent with theoretical expectations.

arXiv comment3 pages, 3 figures

References in corpus (5)

• Nuclear spin driven resonant tunnelling of magnetisation in Mn12 acetate
• Propagation of Avalanches in Mn${}_{12}$-acetate: Magnetic Deflagration
• Tunable dipolar magnetism in high-spin molecular clusters
• Long-range ferromagnetism of Mn12 acetate single-molecule magnets under a transverse magnetic field
• Dipolar Ordering and Quantum Dynamics of Domain Walls in Mn-12 Acetate

Cited by in corpus (13)

• Realization of random-field dipolar Ising ferromagnetism in a molecular magnet
• On the anisotropy barrier reduction in fast relaxing Mn12 single-molecule magnets
• Self-organized patterns of macroscopic quantum tunneling in molecular magnets
• Onset of a Propagating Self-Sustained Spin Reversal Front in a Magnetic System
• Tuning Magnetic Avalanches in Mn12-ac
• Extreme field-sensitivity of the magnetic tunneling in Fe-doped Li${}_3$N
• Quantum deflagration and supersonic fronts of tunneling in molecular magnets
• Fronts of spin tunneling in molecular magnets
• Turbulent fronts of quantum detonation in molecular magnets
• Deflagration with quantum and dipolar effects in a model of a molecular magnet
• Effects of uniaxial pressure on the quantum tunneling of magnetization in a high-symmetry Mn12 single-molecule magnet
• Dipolar ordering in crystals of Mn12 Ac
• The effect of uniaxial pressure on the magnetic anisotropy of the Mn_{12}-Ac single-molecule magnet