Intercalation route to new superconducting and insulating hybrid systems, M-X-Bi2Sr2Can-1CunOy (M = Hg,Ag; X = Br,I; Py = pyridine; n = 1,2)

Jin Ho Choy, Seong Ju Hwang, Young Il Kim, Soon Jae Kwon

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5 Citations (Scopus)


We have systematically applied the intercalation technique to the layered superconducting oxides in order not only to develop a new high-Tc superconducting nanohybrid, but also to investigate the mechanism responsible for high-Tc superconductivity. In the light of the Lewis acid-base concept, we have recently synthesized new types of high-Tc superconducting intercalation compounds: M-X-Bi2Sr2Can-1CunOy (M = Hg,Ag; X = Br,I; n = 1,2). According to X-ray absorption spectroscopic analysis, intercalated HgX2 is stabilized in a molecular form with linear symmetry, which is the first example of molecular HgX2 in a solid matrix, and the intercalated AgI has an α-AgI-like structure with distorted tetrahedral symmetry, which is consistent with the significant rapid ionic conductivity of AgI-intercalate in the temperature domain 25-300°C.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalSolid State Ionics
Issue number1-4
Publication statusPublished - 1998 May 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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