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タイトル: | Orthogonal antiferromagnetism to canted ferromagnetism in CaCo₃Ti₄O₁₂ quadruple perovskite driven by underlying kagome lattices |
著者: | Amano Patino, Midori Denis Romero, Fabio Koo, Hyun-Joo Avdeev, Maxim Injac, Sean D. A. Goto, Masato https://orcid.org/0000-0002-8198-7622 (unconfirmed) Whangbo, Myung-Hwan Shimakawa, Yuichi https://orcid.org/0000-0003-1019-2512 (unconfirmed) |
著者名の別形: | 後藤, 真人 島川, 祐一 |
キーワード: | Electronic properties and materials Magnetic materials Magnetic properties and materials Solid-state chemistry |
発行日: | 2022 |
出版者: | Springer Nature |
誌名: | Communications Materials |
巻: | 3 |
論文番号: | 51 |
抄録: | AA′₃B₄O₁₂ quadruple perovskites, with magnetic A′ and non-magnetic B cations, are characterized by a wide range of complex magnetic structures. These are due to a variety of competing spin-exchange interactions up to the fourth nearest neighbours. Here, we synthesize and characterize the magnetic behaviour of the CaCo₃Ti₄O₁₂ quadruple perovskite. We find that in the absence of an external magnetic field, the system undergoes antiferromagnetic ordering at 9.3 K. This magnetic structure consists of three interpenetrating mutually orthogonal magnetic sublattices. Under an applied magnetic field, this antiferromagnetic structure evolves into a canted ferromagnetic structure. In explaining these magnetic structures, as well as the seemingly unrelated magnetic structures found in other quadruple perovskites, we suggest a crucial role played by the underlying kagome lattices in these systems. All observed magnetic structures of these materials represent indeed one of the three possible ways to reduce spin frustration in the A′ site kagome layers. More specifically, our survey of the magnetic structures observed for quadruple perovskites AA′₃B₄O₁₂ reveals the following three ways to reduce spin frustration, namely to make each layer ferromagnetic, to adopt a compromise 120° spin arrangement in each layer, or to have a magnetic structure with a vanishing sum of all second nearest-neighbour spin exchanges. |
著作権等: | © The Author(s) 2022 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/279235 |
DOI(出版社版): | 10.1038/s43246-022-00274-y |
出現コレクション: | 学術雑誌掲載論文等 |
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