Enhanced electrical transport properties of nano NiFe 2O 4-added (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor

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Abstract

The effect of nanometer sized NiFe 2O 4 (∼15 nm) addition in Bi 1.6Pb 0.4Sr 2Ca 2Cu 3O 10 (Bi2223) superconductor was studied. The (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor was prepared through the co-precipitation method and 0.01 wt% to 0.05 wt% of nano NiFe 2O 4 was added. The critical temperature (T c), critical current density (J c), phase formation and microstructure were investigated. All samples showed a major Bi2223 phase with (Bi,Pb) 2Sr 2CaCu 2O 8 (Bi2212) as the minor phase. The sample with 0.01 wt% nano NiFe 2O 4 showed the highest T c and J c: of more than 3 orders of magnitude higher than the non-added sample at 77 K. A further nano NiFe 2O 4 addition (>0.01 wt%) leads to degradation of T c and J c. These results indicate that addition of an optimum amount of NiFe 2O 4 nanoparticles can effectively enhance the transport critical current density in this system.

Original languageEnglish
Pages (from-to)257-263
Number of pages7
JournalJournal of Superconductivity and Novel Magnetism
Volume23
Issue number2
DOIs
Publication statusPublished - Feb 2010

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Transport properties
Superconducting materials
transport properties
critical current
Coprecipitation
current density
Nanoparticles
Degradation
Microstructure
critical temperature
degradation
nanoparticles
microstructure
Temperature

Keywords

  • Critical current density
  • Flux pinning
  • Nanoparticles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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title = "Enhanced electrical transport properties of nano NiFe 2O 4-added (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor",
abstract = "The effect of nanometer sized NiFe 2O 4 (∼15 nm) addition in Bi 1.6Pb 0.4Sr 2Ca 2Cu 3O 10 (Bi2223) superconductor was studied. The (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor was prepared through the co-precipitation method and 0.01 wt{\%} to 0.05 wt{\%} of nano NiFe 2O 4 was added. The critical temperature (T c), critical current density (J c), phase formation and microstructure were investigated. All samples showed a major Bi2223 phase with (Bi,Pb) 2Sr 2CaCu 2O 8 (Bi2212) as the minor phase. The sample with 0.01 wt{\%} nano NiFe 2O 4 showed the highest T c and J c: of more than 3 orders of magnitude higher than the non-added sample at 77 K. A further nano NiFe 2O 4 addition (>0.01 wt{\%}) leads to degradation of T c and J c. These results indicate that addition of an optimum amount of NiFe 2O 4 nanoparticles can effectively enhance the transport critical current density in this system.",
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AU - Kong, W.

AU - Abd. Shukor, Roslan

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N2 - The effect of nanometer sized NiFe 2O 4 (∼15 nm) addition in Bi 1.6Pb 0.4Sr 2Ca 2Cu 3O 10 (Bi2223) superconductor was studied. The (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor was prepared through the co-precipitation method and 0.01 wt% to 0.05 wt% of nano NiFe 2O 4 was added. The critical temperature (T c), critical current density (J c), phase formation and microstructure were investigated. All samples showed a major Bi2223 phase with (Bi,Pb) 2Sr 2CaCu 2O 8 (Bi2212) as the minor phase. The sample with 0.01 wt% nano NiFe 2O 4 showed the highest T c and J c: of more than 3 orders of magnitude higher than the non-added sample at 77 K. A further nano NiFe 2O 4 addition (>0.01 wt%) leads to degradation of T c and J c. These results indicate that addition of an optimum amount of NiFe 2O 4 nanoparticles can effectively enhance the transport critical current density in this system.

AB - The effect of nanometer sized NiFe 2O 4 (∼15 nm) addition in Bi 1.6Pb 0.4Sr 2Ca 2Cu 3O 10 (Bi2223) superconductor was studied. The (Bi 1.6Pb 0.4)Sr 2Ca 2Cu 3O 10 superconductor was prepared through the co-precipitation method and 0.01 wt% to 0.05 wt% of nano NiFe 2O 4 was added. The critical temperature (T c), critical current density (J c), phase formation and microstructure were investigated. All samples showed a major Bi2223 phase with (Bi,Pb) 2Sr 2CaCu 2O 8 (Bi2212) as the minor phase. The sample with 0.01 wt% nano NiFe 2O 4 showed the highest T c and J c: of more than 3 orders of magnitude higher than the non-added sample at 77 K. A further nano NiFe 2O 4 addition (>0.01 wt%) leads to degradation of T c and J c. These results indicate that addition of an optimum amount of NiFe 2O 4 nanoparticles can effectively enhance the transport critical current density in this system.

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