Thick YBa2Cu3O7−x+BaSnO3 films with enhanced critical current density at high magnetic fields

2008 ◽  
Vol 93 (9) ◽  
pp. 092501 ◽  
Author(s):  
C. V. Varanasi ◽  
J. Burke ◽  
H. Wang ◽  
J. H. Lee ◽  
P. N. Barnes
Keyword(s):  
Magnetic Fields ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Magnetic Fields

Effect of Packing Density on Critical Current Density at High Magnetic Fields in Polycrystalline MgB2Superconductors

2012 ◽  
Vol 51 (12R) ◽  
pp. 123103
Author(s):  
Teruo Matsushita ◽  
Junya Tanigawa ◽  
Masaru Kiuchi ◽  
Akiyasu Yamamoto ◽  
Jun-ichi Shimoyama ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Packing Density ◽  
High Magnetic Fields

scholarly journals Enhancement of the critical current density in FeO-coated MgB2 thin films at high magnetic fields

2011 ◽  
Vol 2 ◽  
pp. 809-813 ◽  
Author(s):  
Andrei E Surdu ◽  
Hassan H Hamdeh ◽  
I A Al-Omari ◽  
David J Sellmyer ◽  
Alexei V Socrovisciuc ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Magnetic Fields ◽  
Magnetization Hysteresis ◽  
Current Densities ◽  
Mgb2 Thin Films ◽  
Feo Nanoparticles

The effect of depositing FeO nanoparticles with a diameter of 10 nm onto the surface of MgB2 thin films on the critical current density was studied in comparison with the case of uncoated MgB2 thin films. We calculated the superconducting critical current densities (J c) from the magnetization hysteresis (M–H) curves for both sets of samples and found that the J c value of FeO-coated films is higher at all fields and temperatures than the J c value for uncoated films, and that it decreases to ~105 A/cm2 at B = 1 T and T = 20 K and remains approximately constant at higher fields up to 7 T.

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