The temperature dependence of the nuclear magnetic resonance (nmr) of Rh¹⁰³ in rhodium metal has been examined. From the linearity of the Knight shift (K) versus susceptibility (χ) plot, it is deduced that all of the temperature variation in χ is of d-spin origin; the slope of the K-versus-χ curve yields a core-polarization hyperfine field of -0.323×{}10⁶ Oe spin. An analysis of the separate contributions to the K and χ based on a two-band model is given, and some considerations offered on the exchange enhancement of χ in the Rh-Pd alloy system. Nmr has also been observed and the Knight shifts determined in the intermetallic compounds RhSn₂, LaRh₂, RhSi, ThRh₃, and URh₃. A value of the Rh¹⁰³ nuclear moment μ¹⁰³=-0.0879±0.0001μₙ (uncorrected for diamagnetic shielding) is obtained.
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Seitchik et al. (1965) studied this question.
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