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New Light-weight Molecule-Primarily based Magnet Reveals Unprecedented Magnetic Properties

Next-Generation Molecule-Based Magnets

Pictural illustration of the molecule-based magnet and its magnetic properties. Credit score: Rodolphe Clérac

Magnets are to be discovered all over the place in our each day lives, whether or not in satellites, telephones or on fridge doorways. Nevertheless, they’re made up of heavy inorganic supplies whose part parts are, in some circumstances, of restricted availability.

Now, researchers from the CNRS, the College of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble)[1] have developed a brand new light-weight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties.

This compound, derived from coordination chemistry[2], incorporates chromium, an ample metallic, and cheap natural molecules. That is the primary molecule-based magnet that reveals a ‘reminiscence impact’ (i.e. it’s able to sustaining one in every of its two magnetic states) as much as a temperature of 240 °C. This impact is measured by what is called a coercive area, which is 25 instances larger at room temperature for this novel materials than for probably the most environment friendly of its molecule-based predecessors. This property due to this fact compares properly with that of sure purely inorganic industrial magnets.

The invention, revealed on October 30th in Science, opens up extremely promising prospects, which might result in next-generation magnets complementary to present programs.

Watch movies illustrating the molecule-based magnet’s properties earlier than and after its last synthesis step.


Learn Scientists Design New Light-weight Magnets With Excellent Properties for extra on this analysis.

Reference: “Metallic-organic magnets with massive coercivity and ordering temperatures as much as 242°C” by Panagiota Perlepe, Itziar Oyarzabal, Aaron Mailman, Morgane Yquel, Mikhail Platunov, Iurii Dovgaliuk, Mathieu Rouzières, Philippe Négrier, Denise Mondieig, Elizaveta A. Suturina, Marie-Anne Dourges, Sébastien Bonhommeau, Rebecca A. Musgrave, Kasper S. Pedersen, Dmitry Chernyshov, Fabrice Wilhelm, Andrei Rogalev, Corine Mathonière and Rodolphe Clérac, 30 October 2020, Science.
DOI: 10.1126/science.abb3861

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