Fermi-surface reconstruction involving two Van Hove singularities across the antiferromagnetic transition in BaFe2As2

Y. Nakashima, A. Ino, S. Nagato +14

We report an angle-resolved photoemission study of BaFe2As2, a parent compound of iron-based superconductors. Low-energy tunable excitation photons have allowed the first observati…