Linear constitutive theory for magnetizable media

In a previous paper a thermodynamical model for describing a thermoelastic magnetizable body was developed in the framework of extended irreversible thermodynamics. Liu's theorem was applied to analyze the entropy inequality and constitutive laws were deduced with the help of Smith's theorem by isotropic representations of proper objective constitutive functions. In this contribution we linearize, around a thermodynamic equilibrium state of the medium, the constitutive relations for the symmetric stress tensor, the magnetization axial vector, the entropy function, the affinities and the rate equations for the electric current and the heat flux. Finally, we work out the linearized field equations that allow to solve analytically and/or numerically physical problems describing real processes.