Covalent bonding in NiO: Evidence from a combined STM, LSDA plus U and EELS study

We show STM images that display fourfold symmetry hole states around point defects on the NiO (001) surface that are a number of times larger than the unit cell. The observation of these spatially delocalised states demonstrates that a reasonable description of bonding in NiO must go beyond a simple...

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Hlavní autoři: Castell, M, Dudarev, S, Botton, G, Briggs, G, Sutton, A
Médium: Conference item
Vydáno: 1998