Relationship between nernst-ettingshausen and peltier-seebeck figures of merit in strong magnetic field

Abstract

The strong-magnetic-field limiting values of the Peltier-Seebeck and the Nernst-Ettingshausen figures of merit for a multiband, multivalley anisotropic semiconductor or semimetal are shown to be related to each other in a simple way as the Fermi energy level is varied. The dimensionless material parameter, which indicates the intrinsic quality of the material, is shown to be the same function of crystallographic orientation for both effects in the strong magnetic field.