The complex interplay between magnetism and electronic band structure is pivotal in condensed matter physics, with CeSb devil’s staircase antiferromagnetic transition offering a unique exploration opportunity. Here, the authors use ARPES measurements and DFT calculations to reveal an unconventional band splitting arising from the intricate modulation of paramagnetic and antiferromagnetic layers, advancing our understanding of correlated electron systems.
- Tongrui Li
- Zhanfeng Liu
- Donglai Feng