This analysis determines magnetic structures in manganite crystals, indicating implications for material properties.
The competition of nearest-neighbor exchange interactions is considered within a four-sublattice model to determine the magnetic structure of the model crystal. It is shown that three types of magnetic structures exist: antiferromagnetic, canted, and quasi-one-dimensional. An analytical dependence of the magnetic structure on the ratio of the ferromagnetic and antiferromagnetic exchange parameters is obtained. Possible orbital-charge Mn3+/Mn4+ ordering that could cause this frustrated square magnetic structure is considered.
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L. E. Gonchar (2025) studied this question.
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