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 ...

Metal is used in plugs to allow electricity to transfer from the wall socket, through the plug, and into a device such as a radio or TV. The rubber around this wire is an insulator. Some materials ...

Metals are generally good conductors, but some materials such as wood, rubber, and plastic are not good at conducting electricity. These materials are called “insulators”. Electricity does not move ...

The Wiedemann-Franz Law states that good conductors of electricity are also good conductors of heat. Vanadium dioxide not only switches from an insulator to a conductor at 67C (152F), but it appea ...

The discovery of a dual topological insulator introduces a new method for creating topological flat minibands through electron interactions, which offer a promising platform for exploring exotic ...