Figure 4: The formation of the ordered Jahn–Teller distortions.
From: Chemically induced Jahn–Teller ordering on manganite surfaces
(a) Crystal field splitting of Mn-d orbitals in MnO6 and MnO5 sites. The band formation is shown schematically for the eg orbitals, where the grey colour indicates occupation. (b) Schematic of the ordered Jahn–Teller distortions on the LCMO surface. Squares represent the MnO6 sites, with yellow circles indicating the positions of the oxygen adatoms. Parallelograms represent the distorted MnO5 pyramids, with the lower energy orbital schematically shown. The Jahn–Teller distortion on the central site is indicated by arrows. The vertical dashed zigzag indicates the zigzag distortion of oxygen adatoms along [110].
