Research predicts size-induced transition to nanoscale half-metallicity

How big does a cluster of metal atoms actually have to be before it starts acting like a metal: ductile, malleable and a conductor?

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<p><a href="http://www.physorg.com/news113230824.html">Research predicts size-induced transition to nanoscale half-metallicity</a></p> <p>How big does a cluster of metal atoms actually have to be before it starts acting like a metal: ductile, malleable and a conductor?</p>