On the synthesis and characterization of BaCuO sub 2+x (0 le x le 0. 5)
Journal Article
·
· Journal of Solid State Chemistry; (United States)
- Univ. Ljubljana (Slovenia)
Barium cuprates with the general formula BaCuO{sub 2+x} (0 {le} x {le} 0.5) have been prepared from CuO and BaO{sub 2} with various experimental conditions. At 500C, in an inert atmosphere, a unique X-ray powder pattern has been obtained for 0.29 {lt} x {lt} 0.36. Increasing temperature and oxygen partial pressure resulted in the formation of BaCuO{sub 2.5}, which exhibits an antiferromagnetic ordering and undergoes a transition to diamagnetism at about 3 K, probably due to superconductivity. The two phases are unstable at higher temperatures, with formation of cubic BaCuO{sub 2} at 850C.
- OSTI ID:
- 7050219
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 99:1; ISSN 0022-4596; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
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Synthesis and magnetic properties of novel Ln[sub 2-x]M[sub x]CuO[sub 4+y] compositions (Ln = La, Pr, Nd, Sm, Eu, Gd; M = Ca, Sr, Ba; 0 [le] x [le] 0. 2; [minus]0. 5 [le] y [le] 0. 5)
Phase stability and low-temperature specific heat up to 14 T of BaCuO{sub {ital x}} as a function of oxygen stoichiometry
Journal Article
·
Mon Jun 01 00:00:00 EDT 1992
· Journal of Solid State Chemistry; (United States)
·
OSTI ID:6999246
Synthesis and magnetic properties of novel Ln[sub 2-x]M[sub x]CuO[sub 4+y] compositions (Ln = La, Pr, Nd, Sm, Eu, Gd; M = Ca, Sr, Ba; 0 [le] x [le] 0. 2; [minus]0. 5 [le] y [le] 0. 5)
Technical Report
·
Sun Feb 28 23:00:00 EST 1993
·
OSTI ID:6895076
Phase stability and low-temperature specific heat up to 14 T of BaCuO{sub {ital x}} as a function of oxygen stoichiometry
Journal Article
·
Tue Oct 31 23:00:00 EST 1995
· Physical Review, B: Condensed Matter
·
OSTI ID:122315
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIAMAGNETISM
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
INFORMATION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
STOICHIOMETRY
SUPERCONDUCTIVITY
SYNTHESIS
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DATA
DIAMAGNETISM
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
INFORMATION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
STOICHIOMETRY
SUPERCONDUCTIVITY
SYNTHESIS
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION