The Schottky formula is an equation that describes the concentration of point defects in a crystalline material. These defects significantly influence the electrical, thermal, and mechanical properties of materials, especially at the nanoscale. The formula is given by:
n = N exp(-E/kT)
Where:
n: Equilibrium concentration of defects N: Number of atomic sites E: Energy required to form a defect k: Boltzmann constant T: Absolute temperature