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Tricking Iron into Acting like a Rare-earth Element

By slipping iron between two nitrogen atoms in a lithium matrix, researchers are able to trick iron into having magnetic properties like those of rare-earth elements.Rare-earth magnets are stronger than typical iron-based magnets and have high magnetic anisotropy, meaning they are easily magnetized in one particular direction.  Rare-earth elements are in high demand, difficult to find in large concentrations, and costly to mine.  Iron, in contrast, is abundant and cheap.  If iron can be made to behave like a rare-earth element, strong permanent magnets could be made without rare earths.  I

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