Correlation between local structure variations and critical temperature of (Bi1.6Pb0.4Sr2Ca2Cu3O10+δ)1-x(TiO2)x superconductor

Pham, An T.; Vu, Linh H.; Duy, Thien Nguyen; Klysubun, Wantana; Miyanaga, T.; Man, Nguyen Khac; Duong, Nhan Thi Thanh; Long, Nguyễn Thành; Pham, Phong V.; Bình, Nguyễn Thanh; Tran, Duc H.

doi:10.1016/j.ceramint.2022.11.237

Ceramics International

2023

DOI: 10.1016/j.ceramint.2022.11.237

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Correlation between local structure variations and critical temperature of (Bi1.6Pb0.4Sr2Ca2Cu3O10+δ)1-x(TiO2)x superconductor

An T. Pham

Linh H. Vu

Thien Nguyen Duy

et al.

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2024

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Cited by 2 publications

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Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Matar,

Mohamed,

Abou-Aly

et al. 2024

Appl. Phys. A

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This study examined the impact of adding hard ferrite Ba0.5Sr0.5Fe12O19 (BSF) nanoparticles to the Bi1.8Pb0.4Sr2Ca2Cu3.2O10+δ (Bi, Pb)-2223) superconductor phase. The investigation specifically focused on evaluating the critical current density, fluctuation-induced conductivity, and magnetoresistance of nano-(BSF)x/(Bi, Pb)-2223 composite, where 0.00 ≤ x ≤ 0.20 wt.%. The results revealed that the critical current density, Jc, increased with the addition of nano-(BSF) up to x = 0.04 wt.%, reaching a value of 441.20 A/cm2. The Aslamazov and Larkin (A–L) approach has been evaluated the fluctuation-induced conductivity. Several superconducting parameters, including coherence length ζc(0), effective layer thickness d, penetration depth λpd(0), and Fermi energy $${E}_{F}$$ E F showed improvement as the concentration of nano-(BSF) increased up to x = 0.04 wt.%. In addition to Ginzburg–Landau critical parameters, such as the thermodynamic critical field Bc(0), lower critical magnetic field Bc1(0), upper critical magnetic field Bc2(0), and critical current density Jc(0) demonstrated an increase up to x = 0.04 wt.%, followed by a decrease for higher concentrations. The magnetoresistance measurements were performed at various applied DC magnetic fields, with values ranging from 0.29 to 4.44 kG, and were analyzed using the thermally activated flux creep (TAFC) and Ambegaokar–Halperin (AH) models. The calculated flux pinning energy (U) increased with the addition of nano-(BSF) up to x = 0.04 wt.% and then decreased for x > 0.04 wt.%. Furthermore, the transition width (ΔT), was observed to increase as the applied magnetic field values increased. Moreover, the addition of nano-(BSF) increased the field-independent critical current density, Jc,0(0), up to x = 0.04 wt.%, after which it decreased for higher concentrations.

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Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Matar,

Mohamed,

Abou-Aly

et al. 2024

Appl. Phys. A

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Vortex phase diagram and transition in (Bi1.6Pb0.4Sr2Ca2Cu3O10-δ)1-x(SnO2)x superconductors

Pham,

Le,

Thi Anh Hong

et al. 2024

Results in Physics

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Correlation between local structure variations and critical temperature of (Bi1.6Pb0.4Sr2Ca2Cu3O10+δ)1-x(TiO2)x superconductor

Cited by 2 publications

References 38 publications

Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Vortex phase diagram and transition in (Bi1.6Pb0.4Sr2Ca2Cu3O10-δ)1-x(SnO2)x superconductors

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