Hyperfine Interaction of Xenon in Iron

Abstract

The hyperfine interaction of xenon atoms ($^{129m}\mathrm{Xe}$) implanted in iron has been studied with nuclear magnetic resonance on oriented nuclei. A sharp resonance line was found at ${\ensuremath{\nu}}_{1}=188.12\ifmmode\pm\else\textpm\fi{}0.02$ MHz for substitutionally implanted atoms. In addition a broad resonance line corresponding to vacancy-associated xenon atoms was detected at ${\ensuremath{\nu}}_{2}=152.0\ifmmode\pm\else\textpm\fi{}0.6$ MHz. By measuring ${\ensuremath{\nu}}_{1}$ for different external fields, the nuclear $g$ factor of the ${I}^{\ensuremath{\pi}}={\frac{11}{2}}^{\ensuremath{-}}$ state ($g=0.154\ifmmode\pm\else\textpm\fi{}0.005$), as well as the values and the sign of the internal fields, was determined.