Abstract
Three independent components of the Nernst-Ettingshausen coefficient tensor Q ikl are experimentally measured for an anisotropic single crystal of the p-PbSb2Te4 layered compound. The components Q 123 and Q 132 are found to be negative, whereas the component Q 321 is positive. The experimental data on the anisotropy of the Nernst-Ettingshausen coefficient are discussed together with the available data on the thermopower, the Hall effect, and the electrical conductivity. The analysis demonstrates that the experimental data on the transport effects in p-PbSb2Te4 can be explained within a one-band model of the band spectrum and a mixed mechanism of hole scattering under the assumption that scattering from acoustic phonons and scattering from impurity ions are dominant in the cleavage plane and along the c 3 trigonal axis, respectively.
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