Local Structure Determination of Mn²⁺-Doped Fluoride Crystals by Superhyperfine Splitting Measurements

A procedure is presented for the calculation of the Mn²⁺-F^- bond length from the superhyperfine constants measured by magnetic resonance experiments. With the present technique it is possible to detect the variation of the bond length, ΔR, down to 0.01 Å. The technique is sensitive enough to determine the bond length R and its variation ΔR experienced when pressure or temperature changes.