Superconducting Properties of YBa2Cu3O7-δ with a Multiferroic Addition Synthesized by a Capping Agent-Aided Thermal
Nur Athirah Che Dzul-Kifli1, Mohd Mustafa Awang Kechik1, Hussein Baqiah2
1Laboratory of Superconductor and Thin Films, Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia.
Nanomaterials (Basel, Switzerland)
|November 26, 2022
Summary
Adding bismuth ferrite (BiFeO3) nanoparticles to bulk yttrium barium copper oxide (YBa2Cu3O7-δ) superconductor improved its superconducting properties. The optimal addition of 1.5 wt.% BiFeO3 enhanced critical temperature and grain connectivity.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Superconductivity
Background:
- Bulk YBa2Cu3O7-δ (Y-123) is a high-temperature superconductor.
- Investigating nanoparticle additions can optimize superconducting properties.
Purpose of the Study:
- To explore the effect of BiFeO3 nanoparticle addition on Y-123 superconductor properties.
- To determine the optimal BFO concentration for enhanced superconductivity.
Main Methods:
- Synthesis of Y-123/BFO composites via thermal treatment.
- Characterization using X-ray Diffraction (XRD), Alternating Current Susceptibility (ACS), and Field Emission Scanning Electron Microscopy (FESEM).
Main Results:
- All samples maintained an orthorhombic crystal structure.
- Bismuth ferrite (BiFeO3) addition enhanced the critical temperature (Tc), with 1.5 wt.% showing the highest Tc (91.91 K).
- FESEM revealed decreased grain size with BFO addition, potentially improving grain connectivity.
Conclusions:
- Bismuth ferrite nanoparticles enhance the superconducting properties of Y-123.
- The optimal concentration for improved superconductivity is 1.5 wt.% BiFeO3.
- The study highlights the potential of BFO as an additive for Y-123 superconductor enhancement.
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