Ig. Kuleev et al., ESSENTIAL PHONON DRAG CONTRIBUTION TO THE LONGITUDINAL NERNST-ETTINGSHAUSEN EFFECT IN DEGENERATED HGSE-FE CRYSTALS, Semiconductor science and technology, 10(3), 1995, pp. 314-318
The results of measurements of the longitudinal Nernst-Ettingshausen e
ffect on Hg1-xFexSe samples with different iron content (0 < x < 0.02)
at temperatures T between 10 and 60 K are presented. It is shown that
the detected non-monotonic temperature dependence of the Nernst-Ettin
gshausen effect at low temperatures is caused by competition between t
he phonon drag effect and scattering of electrons by the correlated sy
stem of charged Fe3+ iron impurities. Phonon-phonon scattering (the He
rring mechanism) and the scattering of phonons on point defects (the R
ayleigh mechanism) are taken into account.