Magnetic Surface States in Cadmium

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Abstract
Presented here are the first systematic measurements of the low-field (0-80-Oe) microwave surface impedance of cadmium. The surface impedance is dominated by transitions between magnetic surface states. The magnetic fields at which these transitions occur were measured as a function of the orientation of the magnetic field in the three principal crystal planes of cadmium. Five distinct series are presented and the ratios of the observed transition fields agree with the Prange-Nee theory. These series are assigned to points on the Fermi surface and the Fermi velocities on the third-band lens are presented.