Voigt Thomson law

Voigt-Thomson law describes anisotropic magnetoresistance effect in a thin film strip as a relationship between the electric resistivity and the direction of electric current:

where:

ϑ   is the angle of direction of current in relation to the direction of magnetic field ρ 0   is the initial resistivity Δ ρ   is the change of resistivity (proportional to MR ratio)

The equation can also be expressed as:

where:

ρ ∥   is the parallel component of resistivity ρ ⊥   is the perpendicular component