Synthesis and structure of the layered quadrupole Perovskite Tb{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11}

Journal Article · Thu Jun 01 04:00:00 EDT 1995 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.1995.1265· OSTI ID:174275

Palacin, M R; Caldes, M T; Gomez-Romero, P ^[1]; Krumeich, F ^[2]

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1. Universidad Autonoma de Barcelona (Spain)
2. Institut fuer Anorganische Chemie, Bonn (Germany)

The synthesis, structure, and high-resolution transmission electron microscopy studies of the layered quadrupole perovskite Tb{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} are reported. This oxide represents the limit of the series Ln{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11}, Tb being the smallest lanthanide compatible with the stability of the a{sub p} x a{sub p} x 4a{sub p} superstructure observed (a{sub p} = cubic perovskite cell length). This structure was confirmed by powder X-ray diffraction profile analyses, electron diffraction, and high-resolution electron microscopy. The Cu-O (basal) bond distance of 1.947(3) {angstrom} and the Cu-O-Cu bond angle of 169(1){degrees} are the best suited within this series of oxides to the attainment of superconductivity upon appropriate p-doping.

• OSTI ID: 174275
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 117; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CHEMICAL PREPARATION
COPPER OXIDES
CRYSTAL STRUCTURE
SUPERCONDUCTORS
TERBIUM OXIDES
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY