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Using a magnet to tune a magnet

An international research team, led by scientists at the London Centre for Nanotechnology, has found a way to switch a material's magnetic properties from "hard" to "soft" and back again -- something which could lead to new ways of controlling electromagnetic devices. The research will appear in the journal Nature on Aug. 2, and shows how a magnet can be "tuned" by subjecting it to a second magnetic field, perpendicular to the original.

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