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Title: Topological confinement and superconductivity

Journal Article · · Physical Review Letters
OSTI ID:960605

We derive a Kondo Lattice model with a correlated conduction band from a two-band Hubbard Hamiltonian. This mapping allows us to describe the emergence of a robust pairing mechanism in a model that only contains repulsive interactions. The mechanism is due to topological confinement and results from the interplay between antiferromagnetism and delocalization. By using Density-Matrix-Renormalization-Group (DMRG) we demonstrate that this mechanism leads to dominant superconducting correlations in aID-system.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
OSTI ID:
960605
Report Number(s):
LA-UR-08-05469; LA-UR-08-5469; PRLTAO; TRN: US201006%%1245
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters; ISSN 0031-9007
Country of Publication:
United States
Language:
English