Important material properties can be explained at the level of quantum physics - for example, whether a material conducts ...

Quantum theory restricts certain physical quantities to specific values, influencing material behavior, particularly in ...

Excitonic insulators are a ... Exciton: A bound state of an electron and a hole, which can form in semiconductors when an electron is excited from the valence band to the conduction band.

Noble gases such as helium and neon are poor conductors of electricity, so we call them electrical insulators ... valence band (that is, the energy embodied in the highest-energy electron that ...

This peculiar behavior stems from strong electron-electron ... Concept of a Mott-insulator (center) along with its bandfilling-controlled (left) and bandwidth-controlled (right) Mott transitions. When ...

Techniques for Band ... its electrical properties; strain engineering, where stress is applied to modify the semiconductor's crystal lattice; and quantum well creation, involving thin layers of ...

The observation of a Mott transition from a metal to an insulator ... It has one valence electron per unit cell, so the lowest band is half-filled and the maximum electron energy — also known ...