Present Status and Future Perspective of Bismuth-Based High-Temperature Superconducting Wires Realizing Application Systems

2012 ◽  
Vol 51 (1R) ◽  
pp. 010006 ◽  
Author(s):  
Ken-ichi Sato ◽  
Shin-ichi Kobayashi ◽  
Takayoshi Nakashima
2010 ◽  
Vol 51 (3) ◽  
pp. 151-155 ◽  
Author(s):  
Masafumi OGATA ◽  
Katsutoshi MIZUNO ◽  
Yuuki ARAI ◽  
Hitoshi HASEGAWA ◽  
Takashi SASAKAWA ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yi Zhang ◽  
M. W. Rupich ◽  
Vyacheslav Solovyov ◽  
Qiang Li ◽  
Amit Goyal

Abstract We use atomically resolved scanning transmission electron microscopy and electron energy loss spectroscopy to determine the atomic-scale structural, chemical and electronic properties of artificial engineered defects in irradiated-annealed high temperature superconducting wires based on epitaxial Y(Dy)BCO film. We directly probe the oxygen vacancy defects in both plane and chain sites after irradiation with 18-meV Au ions. The plane site vacancies are reoccupied during post-annealing treatment. Our results demonstrate the dynamic reversible behavior of oxygen point defects, which explains the depression and recovery of self-field critical current and critical temperature in irradiation-annealing process. These findings reveal the strong effect of oxygen vacancies in different sites on the superconductivity properties of irradiated Y(Dy)BCO film, and provide important insights into defects engineering of 2G HTS coil wires.


1990 ◽  
Vol 68 (2) ◽  
pp. 882-884 ◽  
Author(s):  
J. Löhle ◽  
K. Mattenberger ◽  
O. Vogt ◽  
P. Wachter

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