A1 Journal article (refereed)
Metal-organic magnets with large coercivity and ordering temperatures up to 242°C (2020)

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

JYU authors or editors

Mailman, Aaron

Publication details

All authors or editors: Perlepe, Panagiota; Oyarzabal, Itziar; Mailman, Aaron; Yquel, Morgane; Platunov, Mikhail; Dovgaliuk, Iurii; Rouzières, Mathieu; Négrier, Philippe; Mondieig, Denise; Suturina, Elizaveta A.; et al.

Journal or series: Science

ISSN: 0036-8075

eISSN: 1095-9203

Publication year: 2020

Publication date: 29/10/2020

Volume: 370

Issue number: 6516

Pages range: 587-592

Publisher: American Association for the Advancement of Science (AAAS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1126/science.abb3861

Publication open access: Not open

Publication channel open access: Channel is not openly available

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/74029

Abstract

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

Keywords: organometallic compounds; coordination complexes; magnetic properties; crystals; magnets; temperature

Free keywords: metal-organic magnets; large coercivity; ordering temperatures

Fields of science: