B位有序A2MnB' o6钙钛矿（B' = [Co, Ni]）的对称性、磁跃迁和多铁性

IF 1.3 3区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Acta crystallographica Section B, Structural science, crystal engineering and materials Pub Date : 2024-12-01 DOI:10.1107/S2052520624009454

Jose Luis Garcia-Muñoz, Xiaodong Zhang, Gloria Subías, Javier Blasco

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引用次数: 0

摘要

钙钛矿中A位和B位磁原子的存在以及这两个自旋子系统之间的耦合产生了各种激发效应。特别是这种耦合引起了新型多铁性和磁电氧化物领域的兴趣。此外，在B位呈现阳离子有序的磁性双钙钛矿包含了一个额外的调制，可以促进对称破缺、多铁性、磁电和极性相。本文描述了中子衍射获得的磁性结构，并分析了A = Lu, Yb, Tm, Er, Ho， Y, Tb, La0.5Tb0.5， La和B' = Co或Ni的有序A2MnB' o6双钙钛矿的对称性。形成了丰富多样的已被识别和描述的磁序，并讨论了它们的对称性与不同化合物的多铁性和磁电性的关系。

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Symmetry, magnetic transitions and multiferroic properties of B-site-ordered A₂MnB'O₆ perovskites (B' = [Co, Ni]).

The presence of magnetic atoms at the A and B sites and the coupling between these two spin subsystems in perovskites gives rise to a variety of exciting effects. In particular this coupling attracts interest from the field of novel multiferroic and magnetoelectric oxides. Moreover, magnetic double perovskites presenting cationic order at the B sites incorporate an additional modulation that can favor symmetry breaking, multiferroic, magnetoelectric and polar phases. Here, we describe the magnetic structures obtained from neutron diffraction and analyze the symmetry properties of well ordered A₂MnB'O₆ double perovskites with A = Lu, Yb, Tm, Er, Ho, Y, Tb, La_0.5Tb_0.5, La and B' = Co or Ni. A rich variety of magnetic orders is formed that have been identified and described, and their symmetry properties are discussed in relation to the multiferroic and magnetoelectric properties of the different compounds.

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来源期刊

Acta crystallographica Section B, Structural science, crystal engineering and materials CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

3.60

自引率

5.30%

发文量

期刊介绍： Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles related to the structural science of compounds and materials in the widest sense. Knowledge of the arrangements of atoms, including their temporal variations and dependencies on temperature and pressure, is often the key to understanding physical and chemical phenomena and is crucial for the design of new materials and supramolecular devices. Acta Crystallographica B is the forum for the publication of such contributions. Scientific developments based on experimental studies as well as those based on theoretical approaches, including crystal-structure prediction, structure-property relations and the use of databases of crystal structures, are published.