Exponential temperature dependence of the coefficient of the Nernst-Ettingshausen transverse effect in bismuth
Galev V. N., Kozlov V. A., Kolomoets N. V., Skipidarov S. Ya., Tsvetkova N. A.
It was determined that the Nernst coefficient Q of bismuth and its temperature dependence depend strongly on the perfection and geometric dimensions of the crystal at low temperatures. In a perfect sample Q increases exponentially with decreasing temperature. This can be accounted for by the two-stage, phonon-phonon drag of the charge carriers.