Orthorhombic-tetragonal phase transition in high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub 7/
Journal Article
·
· Appl. Phys. Lett.; (United States)
We have determined the effect of elevated temperature on the crystal structure and lattice parameters of the single-phase high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub 7/ using high-temperature x-ray powder diffractometry. This compound is orthorhombic below about 550 /sup 0/C (depending on oxygen partial pressure) and transforms to a tetragonal polymorph at higher temperatures. The reversibility of this transition depends on the oxygen partial pressure. An oxygen ''hopping'' mechanism with possible oxygen loss, which appears consistent with the known structural details, is proposed for the transition.
- Research Organization:
- Sandia National Laboratories, Albuquerque, New Mexico 87185
- OSTI ID:
- 6512001
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:5; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Oxygen ordering and the orthorhombic-to-tetragonal phase transition in YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/
Soft mode behavior in the orthorhombic to tetragonal transition in the high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/
Effect of oxygen pressure on the orthorhombic-tetragonal transition in the high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub x/
Journal Article
·
Tue Sep 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6231376
Soft mode behavior in the orthorhombic to tetragonal transition in the high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/
Journal Article
·
Sun Feb 07 23:00:00 EST 1988
· Appl. Phys. Lett.; (United States)
·
OSTI ID:5681041
Effect of oxygen pressure on the orthorhombic-tetragonal transition in the high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub x/
Journal Article
·
Sun May 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5312070
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
LATTICE PARAMETERS
NUMERICAL DATA
ORTHORHOMBIC LATTICES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SCATTERING
SUPERCONDUCTORS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
TYPE-II SUPERCONDUCTORS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
LATTICE PARAMETERS
NUMERICAL DATA
ORTHORHOMBIC LATTICES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SCATTERING
SUPERCONDUCTORS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
TYPE-II SUPERCONDUCTORS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES