Abstract

The effective mass of a particle in an energy band is its inertia due to the interaction with the lattice during its motion through the crystal. Effective masses are important quantities to parameterize the band structure of materials and their electronic properties like the intrinsic carrier concentrations as function of temperature, electrical conductivity, speed of integrated circuits or the efficiency of solar cells. This chapter aims to review the basic principles and quantum theory behind the concept of effective mass in solid state physics.

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