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Theory of the thermomagnetic effects in thin films in a magnetic field of arbitrary magnitude
Author(s) -
Askerov B. M.,
Kuliev B. I.,
Figarova S. R.,
Ya. Shteinshraiber V.
Publication year - 1978
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220860111
Subject(s) - thermomagnetic convection , condensed matter physics , magnetic field , specularity , thermal conductivity , field strength , field (mathematics) , seebeck coefficient , nernst equation , materials science , physics , thermodynamics , optics , mathematics , quantum mechanics , electrode , pure mathematics , specular reflection
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.