Cyclotron Resonance in Copper

Abstract

Extensive cyclotron resonance experiments in copper at 24 kMc/sec are described. The results are consistent with the Azbel'-Kaner theory of cyclotron resonance in metals and with the known Fermi surface geometry. "Stationary" orbits (orbits having extremal effective mass and vanishing average velocity in the magnetic field direction) are found to dominate the cyclotron resonance signals in copper. The effective mass anisotropy of various classes of stationary orbits is reported. The effects of tipping the magnetic field slightly out of the plane of the sample surface and of the direction of the rf currents with respect to the magnetic field are described.