{"title":"Frustrated Magnetism in a Gyroidal Metal–Organic Framework Magnet","authors":"Shusaku Imajo, Hajime Ishikawa, Koichi Kindo, Kazuya Nakashima, Rie Suizu, Kunio Awaga","doi":"10.1021/acs.chemmater.4c02578","DOIUrl":null,"url":null,"abstract":"Metal–organic frameworks (MOFs) present a diverse chemical platform, leading to innovative breakthroughs in functional materials due to their controllable properties. In recent years, significant progress has been made in the realm of MOF magnets, with a primary emphasis on developing new molecule-based magnets for various applications. Nevertheless, the potential of MOFs as a platform for understanding quantum magnetism is still cultivating. Herein, based on detailed high-magnetic-field experiments on single crystals of Co(II)-oxalate gyroidal MOF, we revealed the competition of multiple quantum magnetic states. Although such phase competition is typically observed in geometrically frustrated magnets, the gyroidal structure does not inherently induce geometric frustration for spins. We propose that in this system, the emergence of bond-dependent anisotropic interactions and tilting of the local trigonal axis lead to the observed competition. This finding unveils the potential of MOF magnets as a novel source of quantum magnetism.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"28 1","pages":""},"PeriodicalIF":7.2000,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry of Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.chemmater.4c02578","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Metal–organic frameworks (MOFs) present a diverse chemical platform, leading to innovative breakthroughs in functional materials due to their controllable properties. In recent years, significant progress has been made in the realm of MOF magnets, with a primary emphasis on developing new molecule-based magnets for various applications. Nevertheless, the potential of MOFs as a platform for understanding quantum magnetism is still cultivating. Herein, based on detailed high-magnetic-field experiments on single crystals of Co(II)-oxalate gyroidal MOF, we revealed the competition of multiple quantum magnetic states. Although such phase competition is typically observed in geometrically frustrated magnets, the gyroidal structure does not inherently induce geometric frustration for spins. We propose that in this system, the emergence of bond-dependent anisotropic interactions and tilting of the local trigonal axis lead to the observed competition. This finding unveils the potential of MOF magnets as a novel source of quantum magnetism.
期刊介绍：
The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.
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