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Title: Coexistence of superconductivity with partially filled stripes in the Hubbard model

The Hubbard model is an iconic model in quantum many-body physics and has been intensely studied, especially since the discovery of high-temperature cuprate superconductors. Combining the complementary capabilities of two computational methods, we found superconductivity in both the electron- and hole-doped regimes of the two-dimensional Hubbard model with next-nearest-neighbor hopping. In the electron-doped regime, superconductivity was weaker and was accompanied by antiferromagnetic Néel correlations at low doping. The strong superconductivity on the hole-doped side coexisted with stripe order, which persisted into the overdoped region with weaker hole-density modulation. These stripe orders varied in fillings between 0.6 and 0.8. Our results suggest the applicability of the Hubbard model with next-nearest hopping for describing cuprate high–transition temperature (Tc) superconductivity.

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Award ID(s):
2110041
PAR ID:
10544602
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
science.org
Date Published:
Journal Name:
Science
Volume:
384
Issue:
6696
ISSN:
0036-8075
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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