Universal stripe order as a precursor of the superconducting phase in pressurized BaFe2Se3 Spin Ladder

Abstract

Identifying a universal magnetic ground state across the iron-based superconductor family may help to propose a universal pairing glue responsible for unconventional superconductivity in these intriguing materials. Here, the authors discover an antiferromagnetic stripe order that appears as a precursor to superconductivity in pressured BaFe2Se3, suggesting that the presence of magnetic fluctuations from the stripe order may hold the key to the superconducting pairing of the iron-based superconductors.