Interplay between magnetic and superconducting fluctuations in the doped 2d Hubbard model
Strongly Correlated Electrons
2022-02-18 v3
Abstract
We study the Hubbard model on a square lattice, using the dynamical vertex approximation and the parquet approximation. These methods allow us to describe the mutual interference of spin-fluctuations in the particle-hole channel and superconducting fluctuations in the cooperon channel in an unbiased way. For small dopings we find predominant commensurable antiferromagnetic spin- and d-wave superconducting fluctuations; for larger doping incommensurate antiferromagnetic spin fluctuations are concomitant to triplet s-wave superconducting fluctuations.
Keywords
Cite
@article{arxiv.1901.09743,
title = {Interplay between magnetic and superconducting fluctuations in the doped 2d Hubbard model},
author = {Anna Kauch and Felix Hörbinger and Motoharu Kitatani and Gang Li and Karsten Held},
journal= {arXiv preprint arXiv:1901.09743},
year = {2022}
}
Comments
20 pages, 17 figures, updated version