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Edge-induced strongly correlated electronic states in two-dimensional Hubbard model: Enhancement of magnetic correlations and self-energy effects
- Publication Year :
- 2018
-
Abstract
- To understand nontrivial edge electronic states in strongly-correlated metals such as cuprate superconductors, we study the two-dimensional Hubbard models with open edge boundary. The position-dependences of the spin susceptibility and the self-energy are carefully analyzed self-consistently, by using the fluctuation-exchange (FLEX) approximation. It is found that spin susceptibilities are strongly enlarged near the (1,1) open edge when the system is near the half-filling. The enhancement is large even if the negative feedback from the self-energy is considered in the FLEX approximation. The present study predicts the emergence of nontrivial spin-fluctuation-driven phenomena near the edge, like the quantum criticality, edge superconductivity, and the bond-density-wave order.<br />18 pages, 7 figures, to be published in J. Phys. Soc. Jpn
- Subjects :
- Superconductivity
Physics
Strongly Correlated Electrons (cond-mat.str-el)
Hubbard model
Condensed matter physics
Condensed Matter - Superconductivity
FOS: Physical sciences
General Physics and Astronomy
Boundary (topology)
02 engineering and technology
Edge (geometry)
021001 nanoscience & nanotechnology
01 natural sciences
Electronic states
Superconductivity (cond-mat.supr-con)
Condensed Matter - Strongly Correlated Electrons
Self-energy
Condensed Matter::Superconductivity
0103 physical sciences
Cuprate
Condensed Matter::Strongly Correlated Electrons
010306 general physics
0210 nano-technology
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....0b0ad06084890b99301828f59dfe02a9