Novel synthetic route to superconducting-insulating nanohybrids

We have developed novel organic;inorganic (cuprate) hybrid superconductors. For the first time, long-chain organic moiety was incorporated into the Bi -based cuprate superconductor through intercalative complexation. The separ ation between superconducting cuprate layers is systematically controlled b y modifying the size of the organic intercalant, giving rise to a critical clue to the relation between superconducting transition temperature (T-c) a nd the dimensionality in the layered high-T-c compound. It is revealed that the: T-c value is not affected by the layer separation between cuprate lay ers, i.e. interlayer coupling. The present nano-hybrids are expected to be a good model compound to understand the high-T-c superconductivity as well as molecular level quantum-well. In addition, the hybrids are believed to b e excellent precursor materials for superconducting particles and thin film or wire.