Formation of the 2223 superconducting phase in Bi sub 4 minus x Pb sub x Sr sub 3 Ca sub 3 Cu sub 4 O sub 16 superconductors
- Dept. of Physics, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400 (TH)
Formation of the 2223 superconducting phase in Pb doped Bi{sub 4}Sr{sub 3}Ca{sub 3}Cu{sub 4}O{sub 16} superconductor is studied. The X-ray diffraction patterns of the Bi{sub 4{minus}x}Pb{sub x}Sr{sub 3}Ca{sub 3}Cu{sub 4}O{sub 16} (0.7 {le} x {le} 1.2) superconductors formed by various heat treatments indicate that they are all multiphase systems containing both the high T{sub c} and low T{sub c} superconductors, with the volume fraction of the 2223 phase increasing with increased Pb content. The high temperature component have extrapolated T{sub c}'s of around 105 K. The zero resistivity temperature decrease with lead content but are well above the reported T{sub c}(75 K) of the Pb free host superconductor.
- OSTI ID:
- 6521933
- Journal Information:
- Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Vol. 4:10; ISSN MPLBE; ISSN 0217-9849
- Country of Publication:
- United States
- Language:
- English
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
BISMUTH COMPOUNDS
CHEMICAL COMPOSITION
CRYSTAL DOPING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEAT TREATMENTS
HIGH TEMPERATURE
LEAD ADDITIONS
LEAD ALLOYS
LOW TEMPERATURE
PHASE STUDIES
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
ZERO-RANGE APPROXIMATION