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Smart Metastructure Method for Increasing T C of Bi(Pb)SrCaCuO High-Temperature Superconductors
Journal of Superconductivity and Novel Magnetism ( IF 1.8 ) Pub Date : 2020-07-05 , DOI: 10.1007/s10948-020-05591-2
Honggang Chen , Yongbo Li , Mingzhong Wang , Guangyu Han , Miao Shi , Xiaopeng Zhao

Improving the critical transition temperature (TC) of Bi(Pb)SrCaCuO (B(P)SCCO) high-temperature superconductors is important; however, considerable challenges exist. In this study, on the basis of the metamaterial structure and the idea that injecting energy will promote the formation of electron pairs, a smart meta-superconductor B(P)SCCO consisting of B(P)SCCO microparticles and Y2O3:Eu3++Ag or Y2O3:Eu3+ luminophore was designed. In the applied electric field, the Y2O3:Eu3++Ag or Y2O3:Eu3+ luminophore generates an electroluminescence (EL), thereby, promoting the TC via EL energy injection. A series of Y2O3:Eu3++Ag or Y2O3:Eu3+ luminous inhomogeneous phase-doped B(P)SCCO samples was prepared. Meanwhile, the B(P)SCCO sample doped with 0.2 wt% Y2O3 or Y2O3:Sm3+ nonluminous inhomogeneous phase was also prepared. Results indicated that the TC of 0.2 wt% Y2O3 or Y2O3:Sm3+ doping sample is lower than that of pure samples. However, the TC of the sample doped with 0.2 wt% Y2O3:Eu3++Ag or Y2O3:Eu3+ luminophore is higher than that of pure sample. This outcome further demonstrated that the smart metastructure method can improve the TC of B(P)SCCO.



中文翻译:

一种提高Bi(Pb)SrCaCuO高温超导体TC的智能元结构方法

提高Bi(Pb)SrCaCuO(B(P)SCCO)高温超导体的临界转变温度(T C)很重要;但是,仍然存在相当大的挑战。在这项研究中,基于超材料结构和注入能量将促进电子对形成的想法,由B(P)SCCO微粒和Y 2 O 3:Eu组成的智能超超导体B(P)SCCO设计了3+ + Ag或Y 2 O 3:Eu 3+发光体。在施加的电场中,Y 2 O 3:Eu 3+ + Ag或Y 2 O 3:Eu 3+发光体产生电致发光(EL),从而通过EL能量注入促进T C。制备了一系列Y 2 O 3:Eu 3+ + Ag或Y 2 O 3:Eu 3+发光不均匀相掺杂B(P)SCCO样品。同时,还制备了掺杂有0.2wt%的Y 2 O 3或Y 2 O 3:Sm 3+非发光不均匀相的B(P)SCCO样品。结果表明,T C为0.2 wt%的Y 2 O 3或Y 2 O 3。:Sm 3+掺杂样品低于纯样品。然而,Ť Ç样品掺杂有0.2重量%Y的2 ö 3:Eu的3+ + Ag或ÿ 2 ö 3:Eu的3+发光材料比纯样品的高。这一结果进一步表明,智能元结构方法可以提高B(P)SCCO的T C。

更新日期:2020-07-05
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