electricity

How we discovered ‘impossible’ material that both conducts electricity – and doesn’t

How we discovered ‘impossible’ material that both conducts electricity – and doesn’t

Metals, which conduct electricity, and insulators, which don’t, are polar opposites. At least that’s what we’ve believed until now. But we have discovered that a well-known insulator can simultaneously act like a conductor in certain measurements. We don’t yet know the reason for this mysterious behaviour but it is likely due to new and exciting quantum effects.