Published June 10, 1992
| Version v1
Journal article
Structural changes in Bi2Sr2CaCu2O8+x single crystals between 20deg and 875degC
Creators
- 1. Inst. of Solid State Physics, Chernogolovka (Russia)
Description
Structure changes in Bi2Sr2CaCu2O8+x (2212) single crystals were investigated by X-ray methods between 20deg-875degC. It was shown that the crystal is not orthorhombic as was believed. It has a monoclinic cell that changes from a primitive to a side-centered one above 450degC. It was also shown that some of the crystals have a monoclinic twin structure. The annealing of the single phase samples above 500degC led to the emergence of new phases had lattice parameters c=9.4 A and c=24.6 A, were coherent with the initialmatrix and reconstructed into each other under subsequent heating. (orig.)
Additional details
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 196
- Journal Issue
- 1/2
- Series
- Phys., C Supercond.
- Journal Page Range
- 191-199
- ISSN
- 0921-4534
- CODEN
- PHYCE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 23085968
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANNEALING; BISMUTH OXIDES; BOND ANGLE; BOND LENGTHS; CALCIUM OXIDES; COPPER OXIDES; CRYSTAL STRUCTURE; HIGH-TC SUPERCONDUCTORS; LATTICE PARAMETERS; MONOCLINIC LATTICES; MONOCRYSTALS; ORTHORHOMBIC LATTICES; PHASE TRANSFORMATIONS; SPACE GROUPS; STRONTIUM OXIDES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; TWINNING; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL LATTICES; CRYSTALS; DIFFRACTION; HEAT TREATMENTS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; SYMMETRY GROUPS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS