Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Page Number
156401
Volume
101
Issue
15
Abstract
The electronic properties of multilayers of strongly-correlated models for cuprate superconductors are investigated
using cluster dynamical mean-field techniques.
We focus on combinations of under-doped and over-doped layers and find that the superconducting order parameter in the over-doped layers
is enhanced by the proximity effect of the strong pairing scale originating from the under-doped layers.
The enhanced order parameter can even exceed the maximum value in uniform systems.
This behavior is well reproduced in slave-boson mean-field calculations which also find higher transition temperatures than in the uniform system.
These results indicate the possibility for higher critical temperatures in artificial cuprate multilayer systems.
