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Growth of Bi2Sr2CaCu2O8 single crystals from Bi-rich melts
- Source :
- Physica C: Superconductivity and its Applications. 213:133-138
- Publication Year :
- 1993
- Publisher :
- Elsevier BV, 1993.
-
Abstract
- High-quality Bi 2 Sr 2 CaCu 2 O 8 single crystals with dimensions up to 15x4x0.05 mm 3 were grown from the starting composition Bi 2+ x Sr 2 CaCu 2 O y , where x =0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and 0.7. Different amounts of Bi 2 O 3 in excess are included in each crystal growth run to act as flux for the growth and the optimum concentrations of the flux amount have been found. Structure characterization of a high-quality 2212 free crystal of 5x1.8x0.02 mm 3 was conducted by the (00 l ), ( h 00) and (0 k 0) X-ray diffractions, using a rotating anode diffractometer, and the back-reflection Laue photograph. It is found that melting incongruency is the main problem encountered in the growth of large and pure-phase single crystals from Bi 2 O 3 -rich melts and we have shown that, for x =0.8, crystals of 2212 phase and crystals of 2201 phase coexisting with CuO are obtained from the two segregated parts of the Bi-rich melts.
- Subjects :
- chemistry.chemical_classification
Materials science
Analytical chemistry
Energy Engineering and Power Technology
Crystal growth
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Crystal
chemistry
Phase (matter)
X-ray crystallography
Electrical and Electronic Engineering
Single crystal
Inorganic compound
Chemical composition
Diffractometer
Subjects
Details
- ISSN :
- 09214534
- Volume :
- 213
- Database :
- OpenAIRE
- Journal :
- Physica C: Superconductivity and its Applications
- Accession number :
- edsair.doi...........724d037f6ded62eac2af3f131577a4f2