Effects of nano-sized PbO on the transport critical current density and flux activation energy of YBa2Cu3O7-δ superconductor

Annas Al-Sharabi, Sarah Yasmin Tajuddin, Au Diya Fatihah Wan Saffiey, Syazana Jasman, Hasan Adli Alwi, Mohammad Hafizuddin Jumali, Roslan Abd. Shukor

Research output: Contribution to journalArticle

Abstract

The effects of nano-sized PbO (10-30 nm) addition on the critical temperature, transport critical current density (Jc) and flux activation energy of YBa2Cu3O7-δ (PbO)x (x = 0.00-0.45 wt.%), prepared by the standard solid-state reaction method were studied. Powder X-ray diffraction method, electrical resistance measurements and scanning electron microscopy have been used to study the samples. The transport critical current density, Jc was measured using the four-point probe method. The flux activation energy, U was calculated from the resistivity versus temperature measurements using the Arrhenius-type equation. The highest superconducting onset temperature Tc onset was observed in the sample with x = 0.35 wt. % (94 K). The x = 0.25 wt. % sample showed the highest Jc. The activation energy (U = 0.90 eV) in zero fields showed a maximal plateau between x = 0.20 and 0.35 wt. %. Enhancement of Jc was explained as the increase in the activation energy as a result of nano-sized PbO addition.

Original languageEnglish
Pages (from-to)90-102
Number of pages13
JournalInternational Journal of Electrochemical Science
Volume12
Issue number1
DOIs
Publication statusPublished - 2017

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Superconducting materials
Activation energy
Fluxes
Acoustic impedance
Solid state reactions
Temperature measurement
X ray powder diffraction
Temperature
Scanning electron microscopy
barium copper yttrium oxide

Keywords

  • Activation energy
  • Current density
  • Microstructure
  • Transition temperature

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Effects of nano-sized PbO on the transport critical current density and flux activation energy of YBa2Cu3O7-δ superconductor. / Al-Sharabi, Annas; Tajuddin, Sarah Yasmin; Wan Saffiey, Au Diya Fatihah; Jasman, Syazana; Alwi, Hasan Adli; Jumali, Mohammad Hafizuddin; Abd. Shukor, Roslan.

In: International Journal of Electrochemical Science, Vol. 12, No. 1, 2017, p. 90-102.

Research output: Contribution to journalArticle

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AU - Alwi, Hasan Adli

AU - Jumali, Mohammad Hafizuddin

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