Experiment has now proved the existence of the predicted three-dimensional 'topological insulator' in the semiconducting alloy Bi 1−x Sb x. One of the triumphs of quantum mechanics in the ...

An intrinsic magnetic topological insulator with gapped surface states would be very useful for both fundamental and application prospects. Now, the use of the time-periodic drive of a laser makes ...

For electricity to flow, you need a conductor. That plastic bottle, that’s an insulator, they don’t let electricity pass through. No, not that either, wood’s an insulator too. We’ve got to ...