Paramagnetic-Resonance Spectrum ofW5+in Rutile (TiO2)

Abstract

The paramagnetic-resonance spectrum of ${\mathrm{W}}^{5+}$ substitutional in Ti${\mathrm{O}}_2$ was measured and analyzed. Both hyperfine lines and superhyperfine lines are observed. In the superhyperfine spectrum there is one group of relatively weak lines that is probably due to "forbidden" transitions. The $g$ factors are: $g_c=1.4431\mathrm{}$, $g_{1\overline{1}0}=1.5944\mathrm{}$, $g_{110}=1.4725\mathrm{}$. The hyperfine coupling constants are $A_c=63.7\mathrm{}\times {10}^{-4\mathrm{}}$ ${\mathrm{cm}}^{-1\mathrm{}}$, $A_{1\overline{1}0}=92.5\mathrm{}\times {10}^{-4\mathrm{}}$ ${\mathrm{cm}}^{-1\mathrm{}}$, $A_{110}=40.8\mathrm{}\times {10}^{-4\mathrm{}}$ ${\mathrm{cm}}^{-1\mathrm{}}$.