Abstract
We report on experimental evidence of non-s-wave pairing in In and Sn nanoparticle assemblies. The superconducting transition temperature T C of the In and Sn nanoparticles varies noticeably with the particle diameter. Surprisingly, T C shifts to a noticeably higher temperature when magnetic Ni nanoparticles are introduced into the vicinity of the superconducting nanoparticles. The T C increases further when the magnetic Ni nanoparticles are brought even closer to the superconducting nanoparticles. There is a critical Ni composition and a critical spatial separation between the magnetic and superconducting nanoparticles that must be reached before their magnetic proximity will suppress the superconductivity. A qualitative mechanism is proposed to understand the present observations.
Original language | English |
---|---|
Article number | 1691 |
Journal | Journal of Nanoparticle Research |
Volume | 15 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2013 |
Keywords
- In nanoparticles
- Magnetic proximity effect
- Sn nanoparticle
- Superconductivity