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An international team of scientists working in England, Russia, Switzerland, and the Netherlands have completely rewritten the rules of magnetic storage. Instead of switching a magnetic region using a magnetic field (like a hard drive head), the researchers have managed to switch a ferrimagnetic nanoisland using lasers. Storing magnetic data using lasers is up to 1,000 times faster than writing to a conventional hard drive.
To achieve this, the researchers created ferrimagnetic nanoislands (pictured above) out of an alloy of iron and gadolinium (a rare earth metal).
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