Important material properties can be explained at the level of quantum physics - for example, whether a material conducts electricity or not. Analysing such quantum states has now revealed that there ...

Other insulators, which don’t allow electric current ... weak enough that the electrons can move relatively freely, from atom to atom. These are called free electrons or delocalised electrons.

A method that can grow a useful insulating material into exceptionally high-quality films that are just one atom thick and are ... hBN is one of the few that is an insulator, making it an ...

Topological insulators are materials that are insulating in their interior but can support the flow of electrons on their surface. The underlying cause is time-reversal symmetry: their physics is ...

A research team led by Prof. PAN Jianwei, Prof. WAN Zhensheng and Prof. DENG Youjin from the University of Science and Technology of China (USTC) observed counterflow superfluidity in two-component ...