Electrons in solids

1. Quantum particle-in-the-box model by Sommerfeld.
The very first description of electrons in a solid was suggested by Sommerfeld who treated the electrons in a metal as quantum particles - fermions - put in a box

..work in progress..

2. Nearly free electron gas. Energy gap opening.

3. Peierls transition.

4. Superconductivity.

5. Spin-orbit interactions. Rashba splitting.