Abstract
A new compound has been synthesized in iodine intercalation of Bi2212 single crystal by using mixed powders of Fe and I2 as reactants. By this intercalation, the lattice parameter along c-axis was expanded from 15.5 (=31.0Å/2) to 18.2 Å. From an analysis of composition by fluorescent X-ray analysis microscope, it was found that only the iodine was inserted into host material. The value of lattice parameter has been shorter than one of ordinary iodine intercalation compound IBi2212 (19.05Å). The out-of-plane resistivity of new compound has remained semiconductor-like behavior after intercalation. The transition temperature (onset) TCon of this new compound was 88 K in both directions.
