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Magnetization reversal in mixed ferrite-chromite perovskites with non magnetic cation on the A-site

Abstract : In this work, we have performed Monte Carlo simulations in a classical model for RFe 1-x Cr x O 3 with R = Y and Lu, comparing the numerical simulations with experiments and mean field calculations. In the analyzed compounds, the antisymmetric exchange or Dzyaloshinskii-Moriya (DM) interaction induced a weak ferromagnetism due to a canting of the antiferromagnetically ordered spins. This model is able to reproduce the magnetization reversal (MR) observed experimentally in a field cooling process for intermediate x values and the dependence with x of the critical temperatures. We also analyzed the conditions for the existence of MR in terms of the strength of DM interactions between Fe 3+ and Cr 3+ ions with the x values variations. © 2016 IOP Publishing Ltd.
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Submitted on : Tuesday, July 16, 2019 - 11:33:42 AM
Last modification on : Friday, November 22, 2019 - 12:14:08 PM

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O.V. Billoni, F. Pomiro, S.A. Cannas, Christine Martin, A. Maignan, et al.. Magnetization reversal in mixed ferrite-chromite perovskites with non magnetic cation on the A-site. Journal of Physics: Condensed Matter, IOP Publishing, 2016, 28 (47), pp.476003. ⟨10.1088/0953-8984/28/47/476003⟩. ⟨hal-02184780⟩

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