Optical reflectance of graphite intercalated with group V pentafluorides

Hanlon, L. R.; Falardeau, E. R.; Guérard, D.; Fischer, J. E.

doi:10.1016/0025-5416(77)90030-1

Cited by 28 publications

(3 citation statements)

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“…In addition, weaker structures are expected at about 0.55 eV and 0.91 eV which result from the transitions 2v--+ lvand 2v--+ lcnear k = 0. As in the case of the 3rd stage, the actual experimental data [10] for AsF 5graphite cannot be explained within the present model.…”

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confidence: 60%

“…The interband transitions at lower energies between the quasi parallel valence bands explain some resonant structures observed below the plasma edges. The model, however, does not explain the reflectivity structure positions observed by Hanlon et al [10] in AsFs-graphite.…”

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confidence: 61%

“…Using the formulae of the Appendix and substituting numerical values for J and q, we get finally : for 3rd stage (9) and for 4th stage (10) where f is the charge transfer coefficient per intercalated molecule in the compound (Cl)n X, z denotes the fraction of the excess charge accumulated on internal layers. For uniform charge repartition z = 3 for the 3rd stage and z 2 for the 4th stage.…”

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Band structure model and electrostatic effects in third and fourth stages of graphite acceptor compounds

Blinowski

Rigaux

1980

J. Phys. France

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The model of independent graphite subsystems is extended to describe the electronic states in stages 3 and 4 of GAC. The electrostatic effects related to the nonequivalence of the internal and external graphite layers are proved to induce a non uniform charge distribution in the system, and also to modify drastically the band structure. Interband optical transitions are analysed within this model. With a charge transfer coefficient comparable to the value obtained for lowest stages of GAC, the expected energies of the intervalence transitions are close to the energies of the reflectivity structures observed experimentally

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