Abstract
Using the magnetic feedback technique, a detailed experimental study has been made on the spin-splitting factors gc associated with the conduction electrons in extremal orbits on the Fermi surface of lead, by measuring the relative strengths of the harmonic amplitudes of the de Haas-van Alphen waveform. Particular attention has been paid to the influence of sample inhomogeneity. Experimental gc values are given for most of the extremal orbits on the lead Fermi surface for high-symmetry directions of [100] , [110] , and [111] of the magnetic field. These gc values are found to span the range from 0.71 to 1.147. The large deviation from the free-electron value are consequences of strong spin-orbit and electron-phonon interactions.
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