Pure and Random-Field Quantum Criticality in the Dipolar Ising Model: Theory of $Mn_{12}$ acetates

A. J. Millis; A. D. Kent; M. P. Sarachik; Y. Yeshurun

doi:10.1103/physrevb.81.024423

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arXiv · 0912.0251

Pure and Random-Field Quantum Criticality in the Dipolar Ising Model: Theory of $Mn_{12}$ acetates

A. J. Millis·A. D. Kent·M. P. Sarachik·Y. Yeshurun

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Abstract

A theoretical model for the $Mn_{12}$ acetates is derived including a 'random field' effect arising from isomer effects in some families of host acetate materials. Estimates for the important energy scales are given. Phase boundaries are determined using a mean field approximation. Predictions for experiment are presented

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A. J. Millis, A. D. Kent, M. P. Sarachik, Y. Yeshurun. 2009-12-01. Pure and Random-Field Quantum Criticality in the Dipolar Ising Model: Theory of $Mn_{12}$ acetates. https://doi.org/10.1103/physrevb.81.024423

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