Effects of Bi-Pb substitution in (Bi,Pb)2223 thin films fabricated by sputtering method

Mori, Zon; Koba, S.

doi:10.1016/j.physc.2016.09.006

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The sintered compacts were replaced for each experiment. Details of the sputtering process and properties of the thin films including the effects of Pb doping have been reported elsewhere [7].…”

Section: Methodsmentioning

confidence: 99%

Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing

Mori

Koba

2019

J. Phys. Commun.

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Post-annealing of superconducting Bi 2 Sr 2 Ca n-1 Cu n O x (BSCCO) thin films deposited by sputtering is essential for obtaining a single 2223 phase. However, optimum annealing temperature is limited to a very narrow range, needing to pass liquid phase for 2223 crystallization while not exceeding reevaporation point. In this study, we optimized annealing conditions and observed the crystal growth process. As a result, single phase 2223 thin films with critical temperature of 108 K were obtained at 850°C, while mixed phase thin films of 2223 and 2212 were grown above 855°C. This is due to the reevaporation of the thin film compounds, and these results reflect the recrystallization process after melting.

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Section: Methodsmentioning

confidence: 99%

Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing

Mori

Koba

2019

J. Phys. Commun.

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“…It is generally believed that the Bi-2223 phase is formed through the reactions between Bi-2212 phase and some Cu/Ca-rich phases. As a result, Bi-2212 phase is inevitably present in Bi-2223 thin films, making it difficult to fabricate them [23][24][25]. In addition, the Bi-2223 lead with a high phase-forming temperature and a low melting point is often added to form some liquid phases so as to lower the reaction temperature and promote the reaction [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Preparation of high purity phase (Bi, Pb)-2223 superconducting films by sol–gel method

Shen,

Lei,

et al. 2024

Supercond. Sci. Technol.

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In this work, a (Bi, Pb)2Sr2Ca2Cu3O10+δ ((Bi, Pb)-2223) solution with good film-forming capability and chemical stability was synthesized through using metal acetates as raw materials, acrylic acid as an additive, and anhydrous methanol as a solvent to adjust the sol formula. Subsequently, (Bi, Pb)-2223 thin films were fabricated on LaAlO3 (LAO) single-crystal substrates via dip-coating technology at different heat treatment temperatures, and the structures and properties of (Bi, Pb)-2223 films were characterized. It was found that when the sol stoichiometric ratio of Bi : Pb : Sr : Ca : Cu was controlled at 1.9 : 0.35 : 2 : 2 : 3 and the gel film was heat-treated at 860℃ and dwelled for 120 minutes in an mixed atmosphere of N2 : O2 = 96 : 4, the prepared thin film with a pure (Bi, Pb)-2223 superconducting phase exhibited excellent biaxial texture, a dense surface structure, and had a Tc of 106 K and a ΔTc of 6 K. The microstructure analysis revealed a layered epitaxial growth of the film along the LAO substrate with a regular arrangement of atoms and a consistent interlayer spacing.

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Effects of Bi-Pb substitution in (Bi,Pb)2223 thin films fabricated by sputtering method

Cited by 2 publications

References 9 publications

Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing

Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing

Preparation of high purity phase (Bi, Pb)-2223 superconducting films by sol–gel method

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Effects of Bi-Pb substitution in (Bi,Pb)2223 thin films fabricated by sputtering method

Cited by 2 publications

References 9 publications

Crystal growth of (Bi, Pb)2Sr2Ca2Cu3O thin films fabricated via post annealing

Crystal growth of (Bi, Pb)2Sr2Ca2Cu3O thin films fabricated via post annealing

Preparation of high purity phase (Bi, Pb)-2223 superconducting films by sol–gel method

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Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing

Crystal growth of (Bi, Pb)₂Sr₂Ca₂Cu₃O thin films fabricated via post annealing