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New shear-like structure: The 2212-related cuprate Bi{sub 16}Sr{sub 28}Cu{sub 17}O{sub 69+{delta}}

Journal Article · · Journal of Solid State Chemistry
; ;  [1]
  1. Universite de Caen (France); and others
The strategy of shearing mechanism has been applied to the 2212 bismuth cuprate Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. A new compound has been synthesized, Bi{sub 16}Sr{sub 28}Cu{sub 17}O{sub 69+{delta}}; it crystallizes in a monoclinic cell with a = 48.40 (1) {angstrom}, b = 5.495 (1) {angstrom}, c = 16.283 (4) {angstrom}, and {beta} = 109.96 (2){degrees}. This phase exhibits 2212 ribbons running along c that are 9 Bi atoms wide, and shifted by 5.3 {angstrom} with respect to each other; the ribbons are interconnected through thin layers involving CuO{sub 6} octahedra. In spite of its close relations with an ideal (101)-shear {open_quotes}2212{close_quotes} structure, this cuprate cannot be considered as such and is termed (101)-collapsed {open_quotes}2212{close_quotes} cuprates. The rupture of the [CuO{sub 2}]{sub {infinity}} layers and the possibility of using these phenomena for creating columnar defects in high-T{sub c} superconducting cuprates are also discussed.
OSTI ID:
237564
Journal Information:
Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 119; ISSN 0022-4596; ISSN JSSCBI
Country of Publication:
United States
Language:
English