[6a-PB1-1~46] 11 Superconductivity（Poster）

[6a-PB1-30] STM/STS observations of the gap distributions and atomic images on PbBi2223 polycrystalline superconductors

〇Akira Sugimoto¹, Masatoshi Iwano¹, Satoshi Ishimitsu¹, Toshikazu Ekino¹ (1.Hiroshima Univ.)

Keywords:Bi2223, STM, Tunnel spectrum

We observed the gap distributions and atomic images on PbBi2223 polycrystalline superconductors.
The STM topography shows a clear atomic image of BiO layer. Simultaneously obtained gap distributions (Delta map) show inhomogeneous features with nano-meter patch structures.