Theory of the thermomagnetic effects in thin films in a magnetic field of arbitrary magnitude

Thermomagnetic effects of a thin film in a magnetic field normal to the film surface are studied for an arbitrary value of specularity parameter p . Using the solution of the Boltzmann equation for an arbitrary film thickness and magnetic field strength the basic thermomagnetic coefficients are calculated, the Nernst‐Ettingshausen coefficient (N‐E) Q , the thermopower in a magnetic field α( H ), and the thermal conductivity in a magnetic field χ. A detailed analysis is given of their dependences on the thickness, magnetic field strength, and the parameter p . It follows from the analysis that in a weak magnetic field the thermopower α and the N‐E coefficient Q are practically p ‐independent. The computer calculations show that α and Q oscillate as functions of the magnetic field strength, the oscillations of Q being more pronounced than those of the electronic thermal conductivity. χ varies monotonically with the magnetic field.