Arrangement of ferric and ferrous ions at low temperatures in FeCl3 intercalated graphite |
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| Authors: | S.E. Millman G. Kirczenow |
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| Affiliation: | Department of Physics, Boston University, Boston, MA 02215, USA |
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| Abstract: | Previous work has shown that electrons donated by the graphite to the FeCl3 intercalant freeze onto some Fe3+ ions to change them into Fe2+ ions at low temperatures. We show that the created Fe2+ ions are not randomly situated. Indirect evidence suggesting the formation of a specific chemical superlattice of Fe3+ and Fe2+ ions is presented. A method for direct observation of this superlattice is suggested. |
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