Numerical Simulation of Magnetic Interactions in Polycrystalline YFeO3

Details Numerical Simulation of Magnetic Interactions in Polycrystalline YFeO3 Numerical Simulation of Magnetic Interactions in Polycrystalline YFeO3

2011-03-23

arxiv.org/abs/1103.4462v1

Journal of Magnetism and Magnetic Materials 320 (2008) 622-629

Physics

Condensed Matter

Materials Science

26 pages, 9 figures

Scientific paper

10.1016/j.jmmm.2007.07.024

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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