Identification of prototypical Brinkman-Rice Mott physics in a class of iron chalcogenides superconductors

X. H. Niu, S. D. Chen, J. Jiang +17

The 122${}^{\ast }$ series of iron-chalcogenide superconductors, for example K${}_x$Fe${}_{2-y}$Se${}_2$, only possesses electron Fermi pockets. Their distinctive electronic structure challe…