REBa_(2)Cu_(3)O_(7-x)exhibits outstanding qualities such as a high irreversible field(7 T)and strong current-carrying capacity(77 K,10^(6) A cm^(-2)),making it ideal for high magnetic field applications such as fusion...REBa_(2)Cu_(3)O_(7-x)exhibits outstanding qualities such as a high irreversible field(7 T)and strong current-carrying capacity(77 K,10^(6) A cm^(-2)),making it ideal for high magnetic field applications such as fusion,accelerators,and nuclear magnetic resonance.However,the degradation of in-field critical current density(Jc)due to vortex motion is a significant hurdle.Research indicates that improving vortex pinning can notably enhance Jc in REBCO,showing promise for its future high-field applications.This review explores vortex pinning mecha-nisms,artificial pinning centers(APCs),and how environmental conditions affect pinning characteristics,highlighting advancements in vortex pinning for REBCO in magnetic fields.Different methods for introducing APCs are discussed and compared for evaluating their efficacy in achieving optimal nanoparticle distri-butions and consequent superconducting performance improvements,under-scoring the importance of nano-defect features(type,size,and distribution)in optimizing the superconducting properties of the REBCO.Additionally,the re-view tackles current challenges,shares recent research breakthroughs,and out-lines future research directions for designing pinning landscapes to further improve REBCO performance.展开更多
基金supported by the National Key R&D Program of China(2022YFE03150203)the National Natural Science Foundation of China(U2032217,52072366)+1 种基金Dalian National Laboratory for Clean Energy(DNL),Chinese Academy of Sciences(CAS),DNL Cooperation Fund,CAS(DNL202021)the Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202041).
文摘REBa_(2)Cu_(3)O_(7-x)exhibits outstanding qualities such as a high irreversible field(7 T)and strong current-carrying capacity(77 K,10^(6) A cm^(-2)),making it ideal for high magnetic field applications such as fusion,accelerators,and nuclear magnetic resonance.However,the degradation of in-field critical current density(Jc)due to vortex motion is a significant hurdle.Research indicates that improving vortex pinning can notably enhance Jc in REBCO,showing promise for its future high-field applications.This review explores vortex pinning mecha-nisms,artificial pinning centers(APCs),and how environmental conditions affect pinning characteristics,highlighting advancements in vortex pinning for REBCO in magnetic fields.Different methods for introducing APCs are discussed and compared for evaluating their efficacy in achieving optimal nanoparticle distri-butions and consequent superconducting performance improvements,under-scoring the importance of nano-defect features(type,size,and distribution)in optimizing the superconducting properties of the REBCO.Additionally,the re-view tackles current challenges,shares recent research breakthroughs,and out-lines future research directions for designing pinning landscapes to further improve REBCO performance.
