La sub 2 CuSnO sub 6 : A new perovskite-related compound with an unusual arrangement of B cations
- Northwestern Univ., Evanston, IL (United States)
The structure of La{sub 2}CuSnO{sub 6} was determined by Rietveld refinement of time-of-flight powder neutron diffraction data. The structure was solved in space group P2{sub 1}/m with unit-cell parameters a = 8.510 (1), b = 7.815, (1), c = 7.817 (1) {angstrom}, and {beta} = 91.15 (1){degree}. The structure is best described as a 2a{sub p} {times} 2a{sub p} {times} 2a{sub p} distorted perovskite with an unusual arrangement of B cations that produces distinct copper-oxygen and tin-oxygen layers. The structural aspects are similar to the high-temperature cuprate superconductors. The magnetic susceptibility versus temperature profile indicates the compound is not a superconductor above 5 K. The phase diagram of the LaO{sub 1.5}-CuO-SnO{sub 2} system was determined at 980C in air. La{sub 2}CuSnO{sub 6} is the only ternary compound in the system.
- OSTI ID:
- 7306273
- Journal Information:
- Chemistry of Materials; (United States), Journal Name: Chemistry of Materials; (United States) Vol. 3:3; ISSN CMATE; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structure-property relationships in the layered cuprate La[sub 2-x]Sr[sub x]CuSnO[sub 6]
The structure and magnetic properties of La{sub 2}MIrO{sub 6} with M = Mg, Co, Ni, and Zn
Related Subjects
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
CHALCOGENIDES
CHEMICAL PREPARATION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
DIAGRAMS
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NEUTRON DIFFRACTION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SCATTERING
SYNTHESIS
TIN COMPOUNDS
TIN OXIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION