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Switchable materials

A new spin on bistability

Many different kinds of switchable molecules and materials are based on transition metal ions, but similar properties are also possible in organic materials. Now, two separate studies reveal new insights into the ability of organic radicals to associate reversibly and cooperatively in the solid state, and in so doing create bistable, hysteretic materials.

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Figure 1: Radical-based hysteretic materials.

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Hicks, R. A new spin on bistability. Nature Chem 3, 189–191 (2011). https://doi.org/10.1038/nchem.997

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