Galvanomagnetic properties of single-crystal antimony between 77  K and 273  K

Galvanomagnetic measurements as a function of temperature between 77 °K and 273 °K in single crystals of antimony are presented. Results are interpreted in terms of the two-carrier multi-valley band model to obtain carrier mobilities, densities and details of the nature of the Fermi surface. The temperature dependences of the mobilities of holes and electrons are found to be T -1 48 and T -1 42 respectively. Contrary to the usual assumption, the electrons are sited in pockets with a small angle of tilt (5°) away from the trigonal axis, while the extrema containing holes have a large tilt angle (24°). Carrier densities are almost independent of temperature, ranging from 3 9 × 10 19 cm -3 at 77 °K to 4 2 × 10 19 cm -3 at 273 °K for both electrons and holes. If, as recent work indicates, there are three pockets of electrons and six of holes, then at 273 °K each electron ellipsoid contains 1 4 × 10 19 electrons/cm 3 and each hole pocket 0 7 × 10 19 holes/cm 3 .