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Letter
Nature Materials 7, 130–133 (1 February 2008) | doi:10.1038/nmat2084
Electrically driven phase transition in magnetite nanostructures
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Abstract
Magnetite (Fe3O4), an archetypal transition-metal oxide, has been used for thousands of years, from lodestones in primitive compasses to a candidate material for magnetoelectronic devices. In 1939, Verwey found that bulk magnetite undergoes a transition at TV|[ap]|120|[thinsp]|K from a high-temperature |[lsquo]|bad metal|[rsquo]| conducting phase to a low-temperature insulating phase.
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