They are talking about our metal-organic magnets reported in Science…

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Metal-organic magnets with large coercivity and ordering temperatures up to 242°C”, Science, Vol. 370, Issue 6516, pp. 587-592, (2020) – 10.1126/science.abb3861Abstract – Reprint Full text

Lightening the load by Jake Yeston – 10.1126/science.370.6516.543-e

Des aimants légers et performants grâce à la chimie moléculaire” by C. Mathonière and R. Clérac, The Conversation, 11th April 2021 – link

See below other links (167), which discuss our work (in 19 different languages):

Metal-organic magnets with large coercivity and ordering temperature up to 242°C

Towards next-generation molecule-based magnets

Magnets are to be found everywhere in our daily lives, whether in satellites, telephones or on fridge doors. However, they are made up of heavy inorganic materials whose component elements are, in some cases, of limited availability.

Now, researchers from the CNRS, the University of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble) have developed a new lightweight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties. This compound, derived from coordination chemistry, contains chromium, an abundant metal, and inexpensive organic molecules.  This is the first molecule-based magnet that exhibits a ‘memory effect’ (i.e. it is capable of maintaining one of its two magnetic states) up to a temperature of 240°C. This effect is measured by what is known as a coercive field, which is 25 times higher at room temperature for this novel material than for the most efficient of its molecule-based predecessors.  This property therefore compares well with that of certain purely inorganic commercial magnets. The discovery, published on 30 October in Science, opens up highly promising prospects, which could lead to next-generation magnets complementary to current systems.

Reference & authors: P. Perlepe, I. Oyarzabal, A. Mailman, M. Yquel, M. Platunov, I. Dovgaliuk, M. Rouzières, P. Négrier, D. Mondieig, E. A. Suturina, M.A. Dourges, S. Bonhommeau, R. A. Musgrave, K. S. Pedersen, D. Chernyshov, F. Wilhelm, A. Rogalev, C. Mathonière, R. Clérac, Metal-organic magnets with large coercivity and ordering temperatures up to 242°C”, Science, Vol. 370, Issue 6516, pp. 587-592, (2020) – 10.1126/science.abb3861Abstract – Reprint Full text

Online comments and publications

Acknowledgments: This work was supported by the University of Bordeaux, the Région Nouvelle Aquitaine, Quantum Matter Bordeaux, the Basque Government, the University of the Basque Country, the Villum Fonden, the University of Jyväskylä, the Academy of Finland, the Centre National de la Recherche Scientifique (CNRS) and the ESRF-The European Synchrotron.

Contact: clerac@crpp-bordeaux.cnrs.fr

[678]. “Metal-organic magnets with large coercivity and ordering temperatures up to 242°C”, Science

[678]. P. Perlepe, I. Oyarzabal, A. Mailman, M. Yquel, M. Platunov, I. Dovgaliuk, M. Rouzières, P. Négrier, D. Mondieig, E. A. Suturina, M.A. Dourges, S. Bonhommeau, R. A. Musgrave, K. S. Pedersen, D. Chernyshov, F. Wilhelm, A. Rogalev, C. Mathonière, R. Clérac, “Metal-organic magnets with large coercivity and ordering temperatures up to 242°C”, Science, Vol. 370, Issue 6516, pp. 587-592, (2020) – 10.1126/science.abb3861Abstract – Reprint Full text

[675].”Polymorphism in a π stacked Blatter radical: structures and magnetic properties of 3-(phenyl)- 1-(pyrid-2-yl)-1,4-dihydrobenzo[e][1,2,4]triazin-4- yl”, CrystEngComm

[675]. C.P. Constantinides, D.B. Lawson, G.A. Zissimou, A.A. Berezin, A. Mailman, M. Manoli, A. Kourtellaris, G.M. Leitus, R. Clérac, H.M. Tuononen and P.A. Koutentis,Polymorphism in a π stacked Blatter radical: structures and magnetic properties of 3-(phenyl)- 1-(pyrid-2-yl)-1,4-dihydrobenzo[e][1,2,4]triazin-4- yl”, CrystEngComm, 22, 5453-5463, (2020) – 10.1039/d0ce00789ghal-02928550

[674]. “Seven Reversible Redox Processes in a Self-Assembled Cobalt Pentanuclear Bis(triple-stranded helicate): Structural, Spectroscopic, and Magnetic Characterizations in the CoICoII4, CoII 5, and CoII3CoIII2 Redox States “, Inorg. Chem.

[674]. E. Gouré, B. Gerey, F. Molton, J. Pécaut, R. Clérac, F. Thomas, J. Fortage and M.N. Collomb, “Seven Reversible Redox Processes in a Self-Assembled Cobalt Pentanuclear Bis(triple-stranded helicate): Structural, Spectroscopic, and Magnetic Characterizations in the CoICoII4, CoII5, and CoII3CoIII2 Redox States “, Inorg. Chem., 59, 9196-9205, (2020) – 10.1021/acs.inorgchem.0c01102hal-02919826

[673]. “Resolution, structures, and vibrational circular dichroism of helicoidal trinickel and tricobalt paddlewheel complexes”, Chirality

[673]. M. Cortijo, A. Valentín-Pérez, P. Rosa, N. Daugey, T. Buffeteau and E.A. Hillard, “Resolution, structures, and vibrational circular dichroism of helicoidal trinickel and tricobalt paddlewheel complexes”, Chirality, 32, 753-764, (2020) – 10.1002/chir.23211hal-02613849