Now, the outside of electric wires are usually covered in plastic because it’s a very poor conductor. It hardly conducts any electricity at all, so we can say it’s an electrical insulator.

"It's the first time that we as physicists understand microscopically why the specific type of Mott insulator that we looked at has never been turned into a conductor," said Brown physics ...

Scientists have developed a hybrid material that switches between conducting and insulating states while maintaining ...