Measurements and reinterpretation of spin splitting in antimony using the de Haas-van Alphen effect

By using the de Haas-van Alphen (dHvA) effect, $g$ factors have been determined in antimony for most carrier branches in the trigonal-bisectrix and binary-bisectrix planes. The use of magnetic fields to 11.8 T, low-level field modulation, and annealed samples allowed accurate determination of the relative spin splitting by direct observation of the dHvA wave shape. Infinite-field phase extrapolations show that $g$ factors are much lower than previously reported. This is shown to be in agreement with theoretical expectations for these $g$ factors.