Dysprosium molecular magnet sets new temperature record

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Sandwich compound keeps its magnetic memory at –213°C, bringing ultra-dense data storage a step closer

A sandwich-like dysprosium compound is the hottest single molecule magnet ever made. It stays magnetised up to –213°C – still a trifle chilly when compared with room temperature, but more than four times warmer than the previous record holder. Single molecule magnets like this could revolutionise data storage.