Crystal chemistry of Ln`Ln``Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} (Ln=Lanthanide, Y) materials
- Northwestern Univ., Evanston, IL (United States); and others
The stabilization of the quadruple perovskite structure Ln{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} as a function of the constituent lanthanides has been investigated. Powder X-ray data show that the mixed A-site compositions Ln`Ln``Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} (Ln`Ln`` = LaY, LaHo, LaEr, and NdDy) concertedly order to form distinct CuO{sub 2}{sup 2-} and TiO{sub 2} double layers. In addition the A cations (Ln` Ln``, and Ba) order on three distinct sites, with the smaller lanthanide (Ln``) occupying the 8-coordinate site between contracted copper-oxygen planes. 22 refs., 5 figs., 2 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 160081
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 7 Vol. 7; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
Similar Records
Internal chemistry of the pure and chemically substituted quadruple perovskites Ln{prime}Ln{double_prime}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} (Ln{prime}Ln{double_prime} = LaY or NdDy)
Crystal structure refinement of the layered copper-titanium perovskites Ln{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} (Ln = La, Nd) from neutron powder diffraction data
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
·
Wed Apr 23 00:00:00 EDT 1997
· Journal of the American Chemical Society
·
OSTI ID:512907
Crystal structure refinement of the layered copper-titanium perovskites Ln{sub 2}Ba{sub 2}Cu{sub 2}Ti{sub 2}O{sub 11} (Ln = La, Nd) from neutron powder diffraction data
Journal Article
·
Mon Oct 31 23:00:00 EST 1994
· Chemistry of Materials
·
OSTI ID:98757
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 00:00:00 EDT 1995
· Journal of Solid State Chemistry
·
OSTI ID:174275