Scalar  
Vector  
Matrix  
Elements of the matrix  
Partial derivative with respect to  
Nabla operator  
Gradient of  
Divergence of  
Symbol  Description  
Dielectric permittivity  
Relative low frequency dielectric permittivity  
Relative high frequency dielectric permittivity  
Energy  
Reference energy  
Conduction band edge energy  
Conduction band edge energy difference  
Fermi energy  
Band gap energy  
Valence band edge energy  
Valence band edge energy difference  
Thermal conductivity  
Lattice contribution to thermal conductivity  
Electron contribution to thermal conductivity  
Hole contribution to thermal conductivity  
Mobility of carrier type  
Electron mobility  
Hole mobility  
mobility due to lattice scattering  
mobility due to lattice and impurity scattering  
mobility including lattice, impurity, and high field reduction  
mobility including lattice, impurity, and high temperature reduction  
Net concentration  
Electric conductivity  
Electron energy relaxation time  
Hole energy relaxation time  
Electrostatic potential  

Magnetic field vector  
Lattice heat capacity  
Heat capacity of the electron subsystem  
Heat capacity of the hole subsystem  
Force vector  
Carrier generation rate  
Heat generation term  
Current density 

Density of states effective mass  
Valley multiplicity  
Electron concentration  
Intrinsic carrier concentration  
Concentration of acceptors  
Effecive density of states in the conduction band  
Concentration of donors  
Total dopant concentration  
Effecive density of states in the valence band  
Hole concentration  
Heat flow  
Carrier recombination rate  
Thermal resistance  
Time  
Carrier temperature  
Lattice temperature  
Electron temperature  
Hole temperature  
Current  
Voltage  
Contact voltage  
Velocity  
Average sound velocity  
Transversal sound velocity  
Longitudinal sound velocity  
Planck's constant  
Reduced Planck's constant  
Boltzmann's constant  
Elementary charge  
Electron rest mass  
Vacuum permittivity 