Abstract This investigation is devoted to a theoretical study of the role of orbital ordering in the magnetic frustration of the pseudoperovskite manganite La1/3Ca2/3MnO3. In the current study, the effect of orbital ordering on magnetic competition is described within the framework of orbitally-dependent superexchange interaction. The ranges of the mixing angles in the orbital structure of frustrated magnetic structures are determined. An orbitally-dependent single-ion anisotropy that takes octahedra tilting into account is proposed as the cause for strongly non-collinear magnetic ordering. The magnetic field dependences of complicated magnetic structures are discussed.

中文翻译：

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La1/3Ca2/3MnO3 中受抑磁有序的理论研究：电荷轨道有序的作用

摘要 本研究致力于对轨道排序在伪钙钛矿锰酸盐 La1/3Ca2/3MnO3 的磁抑制中的作用进行理论研究。在目前的研究中，轨道排序对磁竞争的影响是在轨道相关超交换相互作用的框架内描述的。确定了受抑磁结构轨道结构中的混合角范围。将八面体倾斜考虑在内的轨道相关单离子各向异性被提议作为强非共线磁排序的原因。讨论了复杂磁结构的磁场依赖性。