Abstract
An enhancement of the superconducting transition temperature and development of an additional magnetic component in the superconducting state, initiated by inhomogeneous spin anti-screening are demonstrated in In/Ni nanoparticle composites. A significant 9% increase of the superconducting transition temperature as a consequence of the magnetic proximities is detected. Unconventional cross-shaped magnetization hysteresis loops appear in densely packed assemblies, where magnetization increases, rather than decreases, upon entering the superconducting state in field-decreasing loops. Surprisingly, magnetization in the superconducting state can reach values as large as 3.5 times the saturation magnetization revealed in the normal state.
Original language | English |
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Article number | 2447 |
Journal | Journal of Nanoparticle Research |
Volume | 16 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2014 |
Keywords
- Anti-screening
- In nanoparticle
- Magnetization
- Superconductivity