Fig. 4. Electronic structure and bond length of LCO film.
a Schematic view of LCO with ordered VO. b Energies of the relaxed structures containing ordered VO with different in-plane lattice constant. c Projected density of state (PDOS) spectrum for LCO with ordered VO or dark stripes. d XPS valence band (VB) spectrum excited with a photon energy of 2486.6 eV (left panel) and O K-edge XAS spectrum (right panel) for LCO 25 uc. e Theoretical O K-edge EELS spectra obtained from bright and dark stripes. f The modulation of Co-O bond length as a function of lattice constant.