Spin susceptibility and dynamical properties of conduction electrons in cesium

Using the de Haas-van Alphen (dHvA) effect, we have made a detailed investigation of the effective mass and g-factor of conduction electrons in cesium. A mass anisotropy of 21.6% is observed about a Fermi surface (FS) average value ofm*/m _o =1.44₇±0.02. The g-factor, derived in a variety of ways, has a mean value 2.96±0.03, with little if any orientational variation. These results yield a spin susceptibility 2.14±0.01 times the free-electron value, and a Fermi liquid parameterB _o =?0.322±0.007. When all factors including FS topography, temperature, electron scattering, spin splitting, and effective mass are taken into account, the marked amplitude variation of the dHvA effect with orientation is described rather exactly. The results are compared with recent many-body calculations.