Published 1987 | Version v1
Book Metadata-only

Comparison of the 1-2-3 phase and the 3-3-6 phase in the La-Ba-Cu-O superconductor series

Creators

  • 1. Dept. of Physics, Ohio State Univ., Columbus, OH (USA)

Description

The La/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-δ/ (1-2-3) and La/sub 3-x/Ba/sub 3+x/Cu/sub 6/O/sub 14+y/ (3-3-6) phases are correlated to the variation in T/sub c/ in the La-Ba-Cu-O series. These phases are both oxygen deficient perovskites of the form ABO/sub 3-δ/. From x-ray diffraction the two phases are nearly indistinguishable due to the similar scattering powers of the isoelectronic La/sup +3/ and Ba/sup +2/ ins and the low scattering power of the O atoms. The major difference between them is the La-Ba ratio and the oxygen occupancy conditions. The implications of the similarities and differences of these phases is also discussed

Additional details

Publishing Information

Publisher
American Chemical Society.
Imprint Place
Washington, DC (USA)
ISBN
0-8412-1431-X
Imprint Title
Chemistry of high-temperature superconductors
Journal Page Range
p. 192-197.

Conference

Title
Symposium on the chemistry of high temperature superconductors.
Dates
30 Aug - 4 Sep 1987.
Place
New Orleans, LA (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19092035
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM COMPOUNDS; COPPER OXIDES; CRYSTAL DEFECTS; LANTHANUM COMPOUNDS; OXYGEN; PEROVSKITE; PHASE STUDIES; SUPERCONDUCTORS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; ELEMENTS; MINERALS; NONMETALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS