Energy surface and transition rates in a hexagonal element of spin ice

S. Y. Liashko, V. M. Uzdin, H. Jónsson

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The energy surface of a hexagonal element of Kagome spin ice consisting of six prolate magnetic islands is investigated as a function of applied magnetic field. Minimum energy paths for magnetic reversals are determined to estimate energy barriers and the transition rates estimated using harmonic transition state theory for magnetic systems. The overall transition rate between equivalent ground states is calculated using the stationary state approximation including all possible transition paths. The calculated transition rates are in close agreement with reported experimental measurements taken in the absence of an applied field. Predictions are made for the change in the energy landscape and transition rates as a magnetic field is applied.

Original languageEnglish
Article number012006
Pages (from-to)1-4
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 28 Oct 2017
MoE publication typeA1 Journal article-refereed

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