Dipolar Ordering and Quantum Dynamics of Domain Walls in Mn-12 Acetate

Abstract

We find that dipolar interactions favor ferromagnetic ordering of elongated crystals of Mn12 Acetate below 0.8 K. Ordered crystals must possess domain walls. Motion of the wall corresponds to a moving front of Landau-Zener transitions between quantum spin levels. Structure and mobility of the wall are computed. The effect is robust with respect to inhomogeneous broadening and decoherence.

11 PR pages, 4 figures. This is the extended version

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Cited by in corpus (4)

• Experimental determination of the dipolar field in Mn12-acetate
• Dynamical Monte Carlo investigation of spin reversals and nonequilibrium magnetization of single-molecule magnets
• Transverse Field Ising Ferromagnetism in Mn${}_{12}$-acetate-MeOH
• Field-induced antiferromagnetic correlations in a nanopatterned van der Waals ferromagnet: a potential artificial spin ice