Abstract
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 (Jc) from the magnetization hysteresis (M-H) curves for both sets of samples and found that the Jc value of FeO-coated films is higher at all fields and temperatures than the Jc 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.
Original language | English (US) |
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Pages (from-to) | 809-813 |
Number of pages | 5 |
Journal | Beilstein Journal of Nanotechnology |
Volume | 2 |
Issue number | 1 |
DOIs | |
State | Published - 2011 |
Keywords
- Critical current
- Magnesium diboride
- Nanoparticles
- Pinning
- Superconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
- Electrical and Electronic Engineering