The BCS-BEC crossover is typically observed using ultracold atomic systems but recent experiments suggest investigations may also be possible using strongly correlated systems. Here, the authors use FeSe1−xSx to investigate the evolution of the superconducting state in the BCS-BEC crossover regime observing multiband nature of the BCS-BEC crossover with a suppression of the nematic order upon S-substitution.
- Yuta Mizukami
- Masahiro Haze
- Takasada Shibauchi