Effect of S doping on the critical current density and vortex dynamics in FeSe single crystal

2016 ◽  
Vol 530 ◽  
pp. 55-57 ◽  
Author(s):  
Yue Sun ◽  
Sunseng Pyon ◽  
Tsuyoshi Tamegai
2015 ◽  
Vol 92 (14) ◽  
Author(s):  
Yue Sun ◽  
Sunseng Pyon ◽  
Tsuyoshi Tamegai ◽  
Ryo Kobayashi ◽  
Tatsuya Watashige ◽  
...  

2021 ◽  
Vol 21 (9) ◽  
pp. 4941-4943
Author(s):  
Sang Heon Lee

In the present study, a YBa2Cu3O7−y bulk superconductor added with 5~10 wt% Ag was fabricated employing Sm123 as a seed to produce a superconductive single crystal. Metallic silver was added to the single crystal of YBa2Cu3O7−y to remove defects such as cracks and pores. Electromagnetic properties of the bulk superconductor at 77 K were analyzed based on relationships of magnetic levitation, trapped magnetic force, and critical current density. The critical current density of the superconductor at 77 K and 0 T was 3.53 × 104 A/cm2. Discontinuous points in the distribution of magnetic field lines were not observed, implying that these two specimens grew well as a single crystal without specific weak links. For the growth of a superconductive nano crystal employing slow cooling at temperature of formation of 123 phase, superconductive nano crystals were aligned in a-b direction, the direction of peak current flow. The peak value of the trapped magnetic force of the YBa2Cu3O7−y superconductor specimen was 3.23 kG. Using the FC method, peak forces of attraction and repulsion were 21.696 N and 70.168 N, respectively.


2003 ◽  
Vol 82 (25) ◽  
pp. 4519-4521 ◽  
Author(s):  
S. R. Foltyn ◽  
P. N. Arendt ◽  
Q. X. Jia ◽  
H. Wang ◽  
J. L. MacManus-Driscoll ◽  
...  

2013 ◽  
Vol 494 ◽  
pp. 106-108 ◽  
Author(s):  
Toshihiro Taen ◽  
Takahiro Ohori ◽  
Fumiaki Ohtake ◽  
Tsuyoshi Tamegai ◽  
Kunihiro Kihou ◽  
...  

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