Numerical Simulation of Magnetic Interactions in Polycrystalline YFeO3
E. Lima Jr., T. B. Martins, H. R. Rechenberg, G. F. Goya, C. Cavelius,, R. Rapalaviciute, S. Hao, S. Mathur
TL;DR
This paper combines experimental magnetization measurements with theoretical simulations to analyze magnetic interactions in polycrystalline YFeO3, providing detailed insights into its complex magnetic behavior.
Contribution
It introduces a simulation approach that models the magnetic energy of Fe sublattices, aligning theoretical parameters with experimental data for YFeO3.
Findings
Exchange field H_E = 5590 kOe
Anisotropy field H_A = 0.5 kOe
Dzyaloshinsky-Moriya field H_D = 149 kOe
Abstract
The magnetic behavior of polycrystalline yttrium orthoferrite was studied from the experimental and theoretical points of view. Magnetization measurements up to 170 kOe were carried out on a single-phase YFeO3 sample synthesized from heterobimetallic alkoxides. The complex interplay between weak-ferromagnetic and antiferromagnetic interactions, observed in the experimental M(H) curves, was successfully simulated by locally minimizing the magnetic energy of two interacting Fe sublattices. The resulting values of exchange field (H_E = 5590 kOe), anisotropy field (H_A = 0.5 kOe) and Dzyaloshinsky-Moriya antisymmetric field (H_D = 149 kOe) are in good agreement with previous reports on this system.
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