TITLE

Bi-Sr-Ca-Cu-O superconductor system with critical temperatures of 80 and 107 K

AUTHOR(S)
Kugimiya, K.; Kawashima, S.; Inoue, O.; Adachi, S.
PUB. DATE
May 1988
SOURCE
Applied Physics Letters;5/30/1988, Vol. 52 Issue 22, p1895
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Critical temperatures (Tc) of 80 and 107 K are confirmed by resistivity and inductance measurements and also by the Meissner effect. X-ray/electron diffraction and electron microscopy analyses on a single phase material of 80 K show that its structure is orthorhombic with a unit cell of a=5.407 Ã…, b=27.011 Ã…, c= 30.588 Ã… composed of a pseudotetragonal cell of a=b=5.41 Ã…. The pseudotetragonal cell size and cleavage behavior to very thin flakes strongly indicate that the oxide is basically a lamellar oxide of the Aurivillius phase type, i.e., a stacked layer structure of (Bi2O2)2+ sheets and distorted perovskite cell sheets.
ACCESSION #
9826966

 

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