Metal-organic magnets with large coercivity and ordering temperatures up to 242°C
Perlepe, P., Oyarzabal, I., Mailman, A., Yquel, M., Platunov, M., Dovgaliuk, I., Rouzières, M., Négrier, P., Mondieig, D., Suturina, E. A., Dourges, M.-A., Bonhommeau, S., Musgrave, R. A., Pedersen, K. S., Chernyshov, D., Wilhelm, F., Rogalev, A., Mathonière, C., & Clérac, R. (2020). Metal-organic magnets with large coercivity and ordering temperatures up to 242°C. Science, 370(6516), 587-592. https://doi.org/10.1126/science.abb3861
Julkaistu sarjassa
ScienceTekijät
Päivämäärä
2020Tekijänoikeudet
© 2020 the Authors
Magnets derived from inorganic materials (e.g., oxides, rare-earth–based, and intermetallic compounds)
are key components of modern technological applications. Despite considerable success in a broad
range of applications, these inorganic magnets suffer several drawbacks, including energetically
expensive fabrication, limited availability of certain constituent elements, high density, and poor
scope for chemical tunability. A promising design strategy for next-generation magnets relies on the
versatile coordination chemistry of abundant metal ions and inexpensive organic ligands. Following this
approach, we report the general, simple, and efficient synthesis of lightweight, molecule-based magnets
by postsynthetic reduction of preassembled coordination networks that incorporate chromium metal
ions and pyrazine building blocks. The resulting metal-organic ferrimagnets feature critical temperatures
up to 242°C and a 7500-oersted room-temperature coercivity
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American Association for the Advancement of Science (AAAS)ISSN Hae Julkaisufoorumista
0036-8075Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/43466478
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This work was supported by the University of Bordeaux, the Région Nouvelle Aquitaine, Quantum Matter Bordeaux, and the Centre National de la Recherche Scientifique (CNRS). I.O. and R.C. are grateful to the Basque Government for I.O.'s postdoctoral grant. K.S.P. thanks the VILLUM FONDEN for a Villum Young Investigator grant (15374). A.M. thanks JYU and the Academy of Finland (project 289172) for support. ...Lisenssi
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