The _Kronig-Penny_ is a model that describes an [electron](electron) in a 1 dimensional [square-well periodic potential.](Periodic%20potentials.md#Square-well%20periodic%20potentials) --- # Recommended Reading For the original paper introducing the [Kronig-Penney model](Kronig-Penney%20model.md) see: * [Kronig R. de L., Penney W. G., Quantum mechanics of electrons in crystal lattices, _Procedings of the Royal Society of London A_ 130, 499-513, 1931.](Kronig%20R.%20de%20L.,%20Penney%20W.%20G.,%20Quantum%20mechanics%20of%20electrons%20in%20crystal%20lattices,%20Procedings%20of%20the%20Royal%20Society%20of%20London%20A%20130,%20499-513,%201931..md) #QuantumMechanics/StationaryStateQuantumSystems #QuantumMechanics/MultiParticleQuantumSystems/SolidStatePhysics