1.
Phys Rev Lett
; 101(9): 097004, 2008 Aug 29.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18851642
RESUMO
When a tunneling barrier between two superconductors is formed by a normal material that would be a superconductor in the absence of phase fluctuations, the resulting Josephson effect can undergo an enormous enhancement. We establish this novel proximity effect by a general argument as well as a numerical simulation and argue that it may underlie recent experimental observations of the giant proximity effect between two cuprate superconductors separated by a barrier made of the same material rendered normal by severe underdoping.