Garcia-Muñoz Jose Luis, Zhang Xiaodong, Subías Gloria, Blasco Javier
Instituto de Ciencia de Materiales de Barcelona, ICMAB-CSIC, Carrer dels Til·lers s/n, Campus de la UAB, Bellaterra, Catalunya 08193, Spain.
Instituto de Nanociencia y Materiales de Aragón (INMA),CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain.
Acta Crystallogr B Struct Sci Cryst Eng Mater. 2024 Dec 1;80(Pt 6):665-75. doi: 10.1107/S2052520624009454.
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 AMnB'O double perovskites with A = Lu, Yb, Tm, Er, Ho, Y, Tb, LaTb, 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.
钙钛矿中A位和B位磁性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令人兴奋的效应。特别是这种耦合引起了新型多铁性和磁电氧化物领域的关注。此外，在B位呈现阳离子有序的磁性双钙钛矿包含一种额外的调制，这种调制有利于对称性破缺、多铁性、磁电和极性相。在这里，我们描述了从中子衍射获得的磁结构，并分析了具有A = Lu、Yb、Tm、Er、Ho、Y、Tb、LaTb、La和B' = Co或Ni的有序AMnB'O双钙钛矿的对称性质。形成了丰富多样的磁有序，已对其进行了识别和描述，并结合不同化合物的多铁性和磁电性质讨论了它们的对称性质。
