Solid-state 197Au NMR of gold metal

Solid-state 197Au static nuclear magnetic resonance (NMR) spectra of gold metal, detected at 18.79666 T and at room temperature, have been presented. Thermal annealing process plays an essential role for observation of the 197Au NMR signals. A single peak at 13.937275 MHz ± 25 Hz is observed and the Knight shift at room temperature is determined to be 0.11 %. The Knight shift at 4 K is redefined to be 0.07 %, using the modern physical constants.