Mössbauer Effect of 57Fe and 119Sn Atoms Isolated in Solid Nitrogen

Abstract
The Mössbauer resonances of nitrogen‐matrix‐isolated 57Fe and 119Sn atoms have isomer shifts, which are within the experimental errors, identical with the isomer shifts of the same atoms isolated in rare‐gas matrices. Despite an observed quadrupole splitting of the 57Fe and 119Sn resonances, the relatively small photoelectric cross section of nitrogen makes the nitrogen matrix useful for matrix‐isolation Mössbauer studies of nuclei which require relatively thick Mössbauer absorbers.