Premium
On the Thermoelectric Power of Amorphous Ferromagnets
Author(s) -
Richter R.,
Goedsche F.
Publication year - 1984
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.2221230117
Subject(s) - seebeck coefficient , condensed matter physics , ferromagnetism , electrical resistivity and conductivity , curvature , sign (mathematics) , materials science , spin (aerodynamics) , thermoelectric effect , scattering , physics , quantum mechanics , thermodynamics , mathematics , geometry , mathematical analysis
The spin‐disorder model is adopted to calculate the electrical resistivity and thermoelectric power of ferromagnetic metallic galsses within the molecular field approximation. The resistivity expression interpolates correctly between the low ( T = 0 K) and the high temperature ( T ≧ T C ) results derived previously. Using Mott's formula a magnetic contribution S m ( T ) to the thermopower is calculated which exhibits a nonlinear temperature dependence. Both, sign and curvature of S m ( T ) are correlated with the actual position of 2 k F in the structure factor. For a combined spin and potential scattering the total thermopower is evaluated according to the Nordheim‐Gorte rule. The results reproduce qualitatively sign and curvature of the thermopower observed experimentally in ferromagnetic metallic glasses.