Orbital Paramagnetism of Localized Nonmagnetic Impurities in Metals

The importance of orbital paramagnetism in a weakly exchange-enhanced dilute solution of transition-metal impurities in a nonmagnetic host metal is demonstrated both theoretically and experimentally. It is shown that the orbital and spin contributions to the nuclear resonance shift and relaxation rate separately satisfy a Korringa-like relation. These relations may be used to determine uniquely the individual contributions. The sensitivity of the analysis to crystal-field effects is discussed.