SIMPLE CALCULATION OF THE HALL-COEFFICIENT OF THIN METAL-FILMS

Numerical evaluations of the Hall coefficient of thin metal films have shown that the Hall coefficient is proportional to the product of the film resistivity with its temperature coefficient. Such a simple equation suggests that an elementary physical point of view could be found for calculating the Hall coefficient. A simple calculation explored in the paper, based on the masked curvature of the electron path gives a general expression for the Hall coefficient in good agreement with previous separated studies; it has a general validity for homogeneous materials. Moreover a physical interpretation is thus given for the expression of the Hall coefficient in terms of the product of the resistivity with its temperature coefficient.