Science
Magnetism drives metals to insulators in new experiment: Study provides new tools to probe novel spintronic devices – Science Daily
A new experiment offers the cleanest proof yet for magnetism-driven transitions of metals to insulators.
Like all metals, silver, copper, and gold are conductors. Electrons flow across them, carrying heat and electricity. While gold is a good conductor under any conditions, some materials have the property of behaving like metal conductors only if temperatures are high enough; at low temperatures, they act like insulators and do not do a good job of carrying electricity. In other words, these unusual materials go from acting like a chunk of gold to acting like a piece of wood as temperatures are lowered….
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