Magnetic-Resonance Properties of Pure and Titanium-Doped Hematite

Abstract

Pure and doped single crystals of hematite were investigated using microwave techniques. Our results show that both the field required for resonance and the linewidth increase with Ti doping, and that the linewidth of the Ti‐doped samples favors a slow relaxation process. It is found that values of H_D′, the canting field determined by resonance, and H_D, the static canting field are related by $$H_{\mathrm{D\prime }}{\mathrm{=H}}_D{\text{+4H}}_{\mathrm{M}}{H}_{\text{K0′}}{\mathrm{/H}}_D.$$ However, Ti‐doped samples must be treated by considering a three‐sublattice model.