Magnetic dipolar ordering and quantum phase transition in Fe8 molecular magnet

Abstract

We show that a crystal of mesoscopic Fe8 single molecule magnets is an experimental realization of the Quantum Ising Phase Transition (QIPT) model in a transverse field, with dipolar interactions. Quantum annealing has enabled us to explore the QIPT at thermodynamical equilibrium. The phase diagram and critical exponents we obtain are compared to expectations for the mean-field QIPT Universality class.

5 pages 4 figures

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Cited by in corpus (12)

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• Local and bulk 13C hyperpolarization in NV-centered diamonds at variable fields and orientations
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• Chemical tuning of spin clock transitions in molecular monomers based on nuclear spin-free Ni(II)
• Quantum interference oscillations of the superparamagnetic blocking in an Fe8 molecular nanomagnet
• Magnetic State Selected by Magnetic Dipole Interaction in Kagome Antiferromagnet NaBa${}_2$Mn${}_3$F${}_{11}$
• Transverse Field Ising Ferromagnetism in Mn${}_{12}$-acetate-MeOH
• LiHoF4 as a spin-half non-standard quantum Ising system
• Quantum Fluctuations and Long-Range Order in Molecular Magnets
• Thermodynamics of a Quantum Ising system coupled to a spin bath: Zero Temperature Results
• The Effect of Intrinsic Quantum Fluctuations on the Phase Diagram of Anisotropic Dipolar Magnets