The Role of Emission Mössbauer Spectroscopy in the Study of Sophisticated Materials

Abstract

Emission Mössbauer spectroscopy is about three orders of magnitude more sensitive than the conventional absorption mode, thereby allowing parts per million substitution of ⁵⁷Co at the Cu or Mn active site without perturbing the finely-tuned material. ⁵⁷Co faithfully probes the behavior of Cu-based high temperature superconductors and mixed valence magnetoresistive manganites. The application of emission Mössbauer spectroscopy to biological systems is also highlighted.