Abstract
The lattice thermal conductivity, the high-field Nernst-Ettinghausen thermoelectric coefficient, and the specific heat of antimony have been determined in the temperature range 0.4-2.4°K. Thermal-conductivity results confirm the predominance of phonon-electron normal scattering in the lowest range of temperatures with the expected law. The dramatic increase in the lattice thermal conductivity above 1.5°K is thought to be due to the inability of the electrons to scatter phonons with wave numbers , where is the diameter of a charge carrier's Fermi pocket. An effective scattering Debye temperature of K is in good agreement with experimental results. Nernst-Ettinghausen results give the total electronic density of states ; the presence of a phonon-drag contribution is confirmed and discussed. The specific-heat results, in μJ , are compared with the results of transport measurements and with recent specific-heat determinations.
- Received 5 July 1967
DOI:https://doi.org/10.1103/PhysRev.174.700
©1968 American Physical Society