Figure 5
From: Multiferroic Behavior in Elemental Selenium below 40 K: Effect of Electronic Topology
Electronic structure of Se (0001) slab with 10 atomic planes in (a) a non-magnetic configuration with metallic nature due to surface states, (b) ferromagnetic configuration and (c) antiferromagnetic configuration obtained with U = 5 eV, exhibiting a bandgap.Iso-surfaces of spin-density in (d) antiferromagnetic configuration and (e) ferromagnetic configuration, revealing the magnetic moments localized at the surface.
