Unified Spin Model for Magnetic Excitations in Iron Chalcogenides

Patricia Bilbao Ergueta, Wen-Jun Hu, Andriy H. Nevidomskyy

Recent inelastic neutron scattering (INS) measurements on FeSe and Fe(Te${}_{1-x}$Se${}_x$), have sparked intense debate over the nature of the ground state in these materials. Here we…