多铁质：从氧化铜高温超导体到铁电体

IF 2.5 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2025-06-06 DOI:10.1016/j.jmmm.2025.173274

RuiFeng Zhang, Hu Zhang

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引用次数: 0

摘要

多铁性材料是具有磁性和铁电序共存的材料，允许通过磁电耦合效应施加电场来操纵磁性。在这里，我们提出了一个想法，利用铜氧化物高温超导体母化合物中铜氧层的磁序，通过诱导铁电来设计一类具有d9结构的多铁质。具有反转对称破缺P4mm极性空间群的铜基电荷转移多铁材料SnCuO2和PbCuO2被预测为此类材料。铜氧层的屈曲引起铁电性。由于d9结构，SnCuO2和PbCuO2是电荷转移绝缘体，具有Cu上矩的反铁磁基态。我们的工作揭示了基于氧化铜高温超导体母体化合物的电子结构设计d9多铁性材料的可能性。

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d9 multiferroics: From copper oxide high-temperature superconductors to ferroelectrics

Multiferroics are materials with a coexistence of magnetic and ferroelectric order allowing the manipulation of magnetism by applications of an electric field through magnetoelectric coupling effects. Here we propose an idea to design a class of multiferroics with a d⁹ configuration using the magnetic order in copper-oxygen layers appearing in parent compounds of copper oxide high-temperature superconductors by inducing ferroelectricity. Copper-based charge transfer multiferroics SnCuO₂ and PbCuO₂ having the inversion symmetry breaking P4mm polar space group are predicted to be such materials. The buckling in the copper-oxygen layers induces ferroelectricity. As a result of the d⁹ configuration, SnCuO₂ and PbCuO₂ are charge transfer insulators with the antiferromagnetic ground state of the moment on Cu. Our work reveals the possibility of designing d⁹ multiferroics based on electronic structures of parent compounds of copper oxide high-temperature superconductors.

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来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.