Improved Superconductivity and Structural Mechanism Analysis of Y0.55Gd0.45Ba2Cu3O7-x/SrTiO3/Y0.55Gd0.45Ba2Cu3O7-x Tri-layer

被引:0
作者
Zheng, Tong [1 ]
Xu, Jianming [1 ]
Jiang, Shuai [1 ]
Ma, Ninghua [1 ]
机构
[1] Shanghai Inst Space Power Sources, State Key Lab Space Power Technol, Shanghai 200245, Peoples R China
关键词
Coated conductors; Thickness effect; Thin films; Interlayer; Microstructure; CRITICAL-CURRENT DENSITY; LATTICE MISMATCH; MULTISTEP PROCESS; THICK-FILMS; BASNO3; REBCO;
D O I
10.1080/0371750X.2023.2290271
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
REBa2Cu3O7-a (REBCO) coated conductors has great potential in the field of energy transmission and device applications. However, one of the main obstacles is the limitation of critical current and critical current density of REBCO coated conductors, which restricts its wide application in the above fields. Herein a method to improve the thickness effect based on sandwich structure and SrTiO3 (STO) interlayer has been proposed. The sandwich structural coated conductor displayed better superconductivity. Compared with single-step and multi-step Y0.55Gd0.45Ba2Cu3O7-x (YGdBCO) film, the critical current of YGdBCO/STO/YGdBCO increased by 52.4% and 25.3%, respectively. Meanwhile, the micro-mechanism of current transport in the superconducting film has been investigated and discussed in detail. The segregation and diffusion of elements in the superconducting film and the metallic parts formed within the STO interlayer connected the top and bottom layers and provided channels for current transport. Thickness effect was significantly improved through this method under the mechanism discussed, which should help to improve the large-scale application of REBCO coated conductors.
引用
收藏
页码:35 / 41
页数:7
相关论文
共 51 条
  • [1] Enhanced critical current density and flux pinning traits with Dy2O3 nanoparticles added to YBa2Cu3O7-d superconductor
    Algarni, R.
    Almessiere, M. A.
    Slimani, Y.
    Hannachi, E.
    Ben Azzouz, F.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 852
  • [2] Nanosized Pinning Centers in the Rare Earth-Barium-Copper-Oxide Thin-Film Superconductors
    Antoncik, Filip
    Jankovsky, Ondrej
    Hlasek, Tomas
    Bartunek, Vilem
    [J]. NANOMATERIALS, 2020, 10 (08) : 1 - 19
  • [3] Role of Columnar Defect Size in Angular Dependent Flux Pinning Properties of YBCO Thin Films
    Aye, Moe M.
    Khan, Mukarram Z.
    Rivasto, Elmeri
    Tikkanen, Jussi
    Huhtinen, Hannu
    Paturi, Petriina
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2019, 29 (05)
  • [4] Microscale and nanoscale pinning centres in single-domain REBCO superconductors
    Bartunek, Vilem
    Luxa, Jan
    Sedmidubsky, David
    Hlasek, Tomas
    Jankovsky, Ondrej
    [J]. JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (42) : 13010 - 13019
  • [5] Enhanced Flux Pinning and Critical Currents of YBa2Cu3O7-x Films With Self-Assembled SrO2 Nanoparticles Generated by Eu0.6Sr0.4BiO3 Buffer Layers
    Cui, Zilin
    Zhang, Xin
    Song, Xiaolin
    Xia, Yudong
    Pan, Xifeng
    Cheng, C. H.
    Zhao, Yong
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2021, 31 (06)
  • [6] Investigation of the Flux Pinning Properties of YBCO/NaNbO3 Nanoparticle Composite Superconductor
    Dahiya, Mamta
    Kumar, Rohit
    Kumar, Dheeraj
    Kumar, Dinesh
    Khare, Neeraj
    [J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2021, 34 (09) : 2249 - 2257
  • [7] The influence of BaSnO3 artificial pinning centres on the resistive transition of 2G high-temperature superconductor wire in magnetic field
    Degtyarenko, Pavel
    Gavrilkin, Sergey
    Tsvetkov, Alexey
    Mineev, Nikolay
    Rudnev, Igor
    Ovcharov, Alexey
    Chepikov, Vsevolod
    Lee, Sergey
    Petrykin, Valery
    Molodyk, Alexander
    [J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2020, 33 (04)
  • [8] SEGREGATION TO GRAIN-BOUNDARIES, FREE-ENERGY CONSIDERATIONS AND FRACTURE
    FINE, ME
    STARK, JP
    MARCUS, HL
    [J]. SCRIPTA METALLURGICA, 1986, 20 (11): : 1619 - 1620
  • [9] Flux turbulence in NdBa2Cu3O6+x and underdoped YBa2Cu3O6+x single crystals
    Frello, T
    Baziljevich, M
    Johansen, TH
    Andersen, NH
    Wolf, T
    Koblischka, MR
    [J]. PHYSICAL REVIEW B, 1999, 59 (10): : R6639 - R6642
  • [10] Electromagnetic-thermal-structure multi-layer nonlinear elastoplastic modelling study on epoxy-impregnated REBCO pancake coils in high-field magnets
    Gao, Peifeng
    Guan, Mingzhi
    Wang, Xingzhe
    Zhou, Youhe
    [J]. SUPERCONDUCTIVITY, 2022, 1