Disordered reconstructions of the reduced SnO2-(110) surface

► Extensive search for ground-state structures of the reduced SnO2-(110) surface. ► Completion of the previously unknown equilibrium surface phase diagram. ► Proposal of a meta-stable surface reconstruction of the SnO2-(110) surface. ► Assessment of the stability of meta-stable (4 × 1) reconstructions. ► Discussion of expected STM contrast on the basis of Tersoff-Haman calculations.