In-situ Raman Scattering Study of Stage Transformation in HC1O₄-Graphite Intercalation Compounds

The transformation horn stage-2 to stage-1 in HC1O₄-graphite intercalation compounds is studied by in-situ Raman scattering. The results show the coexistence of well-ordered regions of both stages during the stage transition. The resonant enhancement of Raman scattering has been found in stage1 and stage-2 HC1O₄-GICs.