Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ

S. N. Abd-Ghani, Roslan Abd. Shukor, W. Kong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

The effects of nano particles Fe3O4 addition on the superconducting and transport properties of YBa 2Cu 3O 7-δ (YBCO) were studied. YBa 2Cu 3O 7-δ superconductor powders were prepared by using high purity oxide powders via solid state reaction method. Nano Fe 3O 4 with 0.01 - 0.05 wt.% with average size 28 nm was added into YBCO. The transition temperatures (T c) of the samples were measured by using four point probe method. The critical current (I c) of the samples has been determined by using the 1 μ V/cm criterion from 30 - 77 K. Sample with 0.02 wt.% nano Fe 3O 4 showed the highest T c at 87 K. It is interesting to note the same sample also exhibited the highest J c at 77 K up to 1683 mA/cm 2. Nano Fe 3O 4 has acted as effective flux pinning centers in YBCO. A small amount of nano particles Fe 3O 4 addition has successfully improved the superconducting and transport properties of YBCO. The excessive addition of nano Fe 3O 4 (> 0.02 wt.%) suppressed the T c and J c. Overall, J c decreases with increasing temperature (30 - 77 K) as a consequence of thermally activated flux creep. Magnetic impurities normally suppress superconductivity. However, by adding magnetic nano particles, current carrying capacity of superconductors YBCO was enhanced significantly.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages309-313
Number of pages5
Volume501
DOIs
Publication statusPublished - 2012
Event26th Regional Conference on Solid State Science and Technology, RCSSST 2011 - Seremban, Negeri Sembilan
Duration: 22 Nov 201124 Nov 2011

Publication series

NameAdvanced Materials Research
Volume501
ISSN (Print)10226680

Other

Other26th Regional Conference on Solid State Science and Technology, RCSSST 2011
CitySeremban, Negeri Sembilan
Period22/11/1124/11/11

Fingerprint

High temperature superconductors
Transport properties
Superconducting materials
Flux pinning
Powders
Critical currents
Superconductivity
Solid state reactions
Superconducting transition temperature
Creep
Impurities
Fluxes
Oxides
Temperature

Keywords

  • Nano particles Fe O
  • Transition temperature
  • Transport critical current density
  • YBCO superconductor

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Abd-Ghani, S. N., Abd. Shukor, R., & Kong, W. (2012). Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ In Advanced Materials Research (Vol. 501, pp. 309-313). (Advanced Materials Research; Vol. 501). https://doi.org/10.4028/www.scientific.net/AMR.501.309

Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ . / Abd-Ghani, S. N.; Abd. Shukor, Roslan; Kong, W.

Advanced Materials Research. Vol. 501 2012. p. 309-313 (Advanced Materials Research; Vol. 501).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abd-Ghani, SN, Abd. Shukor, R & Kong, W 2012, Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ in Advanced Materials Research. vol. 501, Advanced Materials Research, vol. 501, pp. 309-313, 26th Regional Conference on Solid State Science and Technology, RCSSST 2011, Seremban, Negeri Sembilan, 22/11/11. https://doi.org/10.4028/www.scientific.net/AMR.501.309
Abd-Ghani SN, Abd. Shukor R, Kong W. Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ In Advanced Materials Research. Vol. 501. 2012. p. 309-313. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.501.309
Abd-Ghani, S. N. ; Abd. Shukor, Roslan ; Kong, W. / Effects of Fe 3O 4 nano particles addition in high temperature superconductor YBa 2Cu 3O 7-δ Advanced Materials Research. Vol. 501 2012. pp. 309-313 (Advanced Materials Research).
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