New Form of Carbon Is Magnetic, Fluorescent, Electroconductive, and Harder Than Diamond (NOVA)

It’s pretty simple, really—take a piece of glass, coat it with carbon, and zap it with a laser for a brief moment—but the results are pretty incredible...
http://www.pbs.org/wgbh/nova/next/physics/new-form-of-carbon-is-magnetic-fluorescent-electroconductive-and-harder-than-diamond/