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The study investigates the robustness of s-wave pairing symmetry in heavily electron-doped iron chalcogenides AFe2-xSe2 (A = K, Cs) using self-consistent mean-field and functional renormalization-group approaches. The findings suggest that unlike iron pnictides, where d-wave pairing is favored, the ferromagnetic nearest-neighbor exchange in chalcogenides leads to a strong preference for s-wave pairing, particularly in the electron-overdoped regime. This research provides insights into the superconducting me
- Author
- gaga1gf
- Language
- EN