Enhancing in-field performance of GdBCO coated conductors by cooperative irradiation with Ti ions and protons  

作　　者：Daxing Huang Hao Dong Tongxin Wang Hao Yu Kaigui Zhu Hongwei Gu Fazhu Ding 

机构地区：[1]Key Laboratory of Applied Superconductivity and Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Department of Physics,Beihang University,Beijing 100191,China

出　　处：《Superconductivity》2024年第3期45-50,共6页超导（英文）

基　　金：National Key R&D Program of China(No.2022YFE03150203);National Natural Science Foundation of China(Grant Nos.U2032217 and 52072366);Dalian National Laboratory for Clean Energy(DNL),Chinese Academy of Sciences(CAS),the DNL Cooperation Fund,CAS(DNL202021);Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202041).

摘　　要：Irradiation can accurately manipulate defects and adjust pinning landscapes within REBa_(2)Cu_(3)O_(7-δ) (REBCO, RE: rare earths) coated conductors (CCs). This study reports a productive method to dramatically boost the in-field critical current density (J_(c) ) for GdBCO CCs using cooperative irradiation with Ti ions and protons. Remarkably, the in-field J_(c) of commercial CCs can be almost doubled at a wide range of temperatures and magnetic fields. Defects of various sizes induced by cooperative irradiation are more uniform distribution through the entire GdBCO film to improve the vortex pinning characteristics, thereby enhancing the in-field performance of the GdBCO CC. This method highlights how combining different particle irradiation types can tailor defect size and distribution, optimizing pinning landscapes for commercial REBCO CCs.

关 键 词：REBCO Ti-ion irradiation Vortex pinning In-field performance 

分 类 号：TM26[一般工业技术—材料科学与工程]