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원문정보
초록
영어
In this work, the effects of GdFeO3(GFO) addition on the superconducting properties of GdBa2Cu3O7-x (GdBCO) bulk samples were investigated. A series of GdBCO + GFO composites (0 1.0 wt.%) were synthesized using the solid-state reaction (SSR) method. XRD analyses revealed peak shifts to low angles and increases in the c-axis lattice constant with increasing GFO content. The superconducting transition temperature (Tc), determined from temperature-resistivity measurements, showed a gradual decrease as GFO was added. At low concentrations (≤ 0.2 wt.%) Tc and superconducting transition temperature width (ΔTc) remained close to those of the pure sample, whereas higher concentrations (≥ 0.5 wt.%) led to a pronounced Tc suppression and broadening of ΔTc. Excess conductivity analysis further indicated that the 3D fluctuation region diminished with increasing GFO concentration, suggesting that GFO incorporation weakens interlayer coupling in the GdBCO system.
목차
Abstract 1. INTRODUCTION 2. EXPERIMENTAL DETAIL 3. RESULT AND DISCUSSION 4. CONCLUSION ACKNOWLEDGMENT REFERENCES
키워드
GdBCOGFOcritical temperatureexcess conductivity
저자
Jun Kyu Choi [ Department of Physics, Chungbuk National University, Cheongju, 28644, Korea ]
Muhammad A. Anugrah [ Department of Physics, Chungbuk National University, Cheongju, 28644, Korea ]
Byeongwon Kang [ Department of Physics, Chungbuk National University, Cheongju, 28644, Korea ]
Corresponding Author