Comparing the Effects of Nb, Pb, Y, and La Replacement on the Structural, Electrical, and Magnetic Characteristics of Bi-Based Superconductors

Asghari, Reza; Naghshara, Hamid; Arsalan, Leyla Çolakerol; Sedghi, H.

doi:10.1007/s10948-018-4692-x

Cited by 10 publications

(5 citation statements)

References 32 publications

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“…A BSCCO superconductor is a typical copper oxide superconductor, consisting of three coexisting superconducting phases, Bi-2201 (T C = 20 K), Bi-2212 (T C = 87 K), and Bi-2223 (T C = 110 K), all of which have a cubic crystal structure [38][39][40][41]. This structure can be seen as a pseudo-perovskite layered structure, where the CuO 2 layers serve as the intrinsic superconducting layer and the BiO, SrO, and Ca atomic layers alternate as charge reservoir layers [4,42].…”

Section: Introductionmentioning

confidence: 99%

Green-Light GaN p-n Junction Luminescent Particles Enhance the Superconducting Properties of B(P)SCCO Smart Meta-Superconductors (SMSCs)

Hai,

Chen,

Sun

et al. 2023

Nanomaterials

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Superconducting materials exhibit unique physical properties and have great scientific value and vast industrial application prospects. However, due to limitations, such as the critical temperature (TC) and critical current density (JC), the large-scale application of superconducting materials remains challenging. Chemical doping has been a commonly used method to enhance the superconductivity of B(P)SCCO. However, satisfactory enhancement results have been difficult to achieve. In this study, we introduce green-light GaN p-n junction particles as inhomogeneous phases into B(P)SCCO polycrystalline particles to form a smart meta-superconductor (SMSC) structure. Based on the electroluminescence properties of the p-n junction, the Cooper pairs were stimulated and strengthened to enhance the superconductivity of B(P)SCCO. The experimental results demonstrate that the introduction of inhomogeneous phases can indeed enhance the critical temperature TC, critical current density JC, and complete diamagnetism (Meissner effect) of B(P)SCCO superconductors. Moreover, when the particle size of the raw material of B(P)SCCO is reduced from 30 to 5 μm, the grain size of the sintered samples also decreases, and the optimal doping concentration of the inhomogeneous phases increases from 0.15 wt.% to 0.2 wt.%, further improving the superconductivity.

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Section: Introductionmentioning

confidence: 99%

Green-Light GaN p-n Junction Luminescent Particles Enhance the Superconducting Properties of B(P)SCCO Smart Meta-Superconductors (SMSCs)

Hai,

Chen,

Sun

et al. 2023

Nanomaterials

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“…Süperiletken yapıların keşfi ve gelişimi deneysel çalışmalar üzerine temellendirilmiştir. Özellikle Cu-O tabakalı yüksek sıcaklık süperiletkenlere katkılama veya kısmi yer değiştirme yöntemleriyle birçok yeni yüksek sıcaklık süperiletken (HTS) form geliştirilmiştir [9][10][11][12][13][14]. BSCCO malzemelere molibden, vanadyum, selenyum, sodyum, potasyum, kobalt, tungsten, seryum, neodimyum, gadolinyum gibi metal, yarı metal ve ağır metal katkılamaları yapılarak birçok ara form oluşturulmuş bunların elektriksel ve manyetik özellikleri incelenerek kritik sıcaklık veya kritik akım yoğunluklarının değişimleri incelenmiştir [15,16].…”

Section: Gi̇ri̇ş (Introduction)unclassified

The Investigation of Bi-Ga Partial Replacement Effect on Magnetic, Mechanical and Microstructural Properties Bi(1,8-x)Pb0,2GaxSr2CaCu2Oy Superconductor

Çavdar

İZMİRLİ

Turan

et al. 2022

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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BSCCO 2212 süperiletken sistem, ekleme ve kısmi değiştirme yöntemleri nedeniyle açık bir yapıya sahip olduğundan birçok çalışma yapılmış ve makaleler yayınlanmıştır. Bu çalışmada, BSCCO 2212 süperiletkeninde belirli bir oranda Bi-Ga kısmi yer değiştirmesi yapılarak Ga oranı artırılarak elde edilen örneklerin duyarlılığı ölçülerek Ga'nın yapının süperiletkenliğine etkisi araştırılmıştır. Her numunenin mekanik özelliklerini incelemek için Vickers mikro sertlik ölçümleri kullanıldı. Numunelerin yapısal özelliklerini belirlemek için x-ışını kırınımı (XRD) analiz sonuçları değerlendirildi ve taramalı elektron mikroskobu (SEM) görüntüleri ile kristal yapı oluşumları gözlemlendi.

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“…They are symbiotic with one another, and a pure single phase is difficult to obtain [11][12][13][14]. By partial substitution of Bi by Pb, the volume fraction of the high-temperature phase Bi2223 can be increased, thus making the Bi2223 phase easier to synthesize and increasing its stability [15,16]. Although Bi-based superconductors are called high-temperature superconductors, a large gap still exists between their T C and practical applications.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the TC of Smart Meta-Superconductor Bi(Pb)SrCaCuO and Inhomogeneous Phase Content

Chen

Wang

et al. 2021

Nanomaterials

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A smart meta-superconductor Bi(Pb)SrCaCuO (B(P)SCCO) may increase the critical transition temperature (TC) of B(P)SCCO by electroluminescence (EL) energy injection of inhomogeneous phases. However, the increase amplitude ΔTC (ΔTC=TC−TC,pure) of TC is relatively small. In this study, a smart meta-superconductor B(P)SCCO with different matrix sizes was designed. Three kinds of raw materials with different particle sizes were used, and different series of Y2O3:Sm3+, Y2O3, Y2O3:Eu3+, and Y2O3:Eu3++Ag-doped samples and pure B(P)SCCO were prepared. Results indicated that the TC of the Y2O3 or Y2O3:Sm3+ non-luminescent dopant doping sample is lower than that of pure B(P)SCCO. However, the TC of the Y2O3:Eu3++Ag or Y2O3:Eu3+ luminescent inhomogeneous phase doping sample is higher than that of pure B(P)SCCO. With the decrease of the raw material particle size from 30 to 5 μm, the particle size of the B(P)SCCO superconducting matrix in the prepared samples decreases, and the doping content of the Y2O3:Eu3++Ag or Y2O3:Eu3+ increases from 0.2% to 0.4%. Meanwhile, the increase of the inhomogeneous phase content enhances the ΔTC. When the particle size of raw material is 5 μm, the doping concentration of the luminescent inhomogeneous phase can be increased to 0.4%. At this time, the zero-resistance temperature and onset transition temperature of the Y2O3:Eu3++Ag doped sample are 4 and 6.3 K higher than those of pure B(P)SCCO, respectively.

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Comparing the Effects of Nb, Pb, Y, and La Replacement on the Structural, Electrical, and Magnetic Characteristics of Bi-Based Superconductors

Cited by 10 publications

References 32 publications

Green-Light GaN p-n Junction Luminescent Particles Enhance the Superconducting Properties of B(P)SCCO Smart Meta-Superconductors (SMSCs)

Green-Light GaN p-n Junction Luminescent Particles Enhance the Superconducting Properties of B(P)SCCO Smart Meta-Superconductors (SMSCs)

The Investigation of Bi-Ga Partial Replacement Effect on Magnetic, Mechanical and Microstructural Properties Bi(1,8-x)Pb0,2GaxSr2CaCu2Oy Superconductor

Relationship between the TC of Smart Meta-Superconductor Bi(Pb)SrCaCuO and Inhomogeneous Phase Content

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