Magnetic materials are always made of metal, but not all metals are magnetic. Iron is magnetic, so any metal with iron in it will be attracted to a magnet. Steel contains iron, so a steel ...

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The ability to control the magnetic properties of rare-earth metals opens new avenues related to their use. For instance, these materials can now be considered for use in HAMR (heat-assisted ...

IN this admirable book Prof. Ewing has brought together matter which was, before to be found only in the journals of learned societies, and he has also given a full account of his own researches ...