Table 1 The relaxed surface areas, dangling bonds of Co²⁺ and Co³⁺ ions and surface energies of {100}, {110}, {111} and {112} crystal planes

Relaxed surface area (Ų)

Dangling bonds of Co²⁺ ions number

Dangling bonds of Co³⁺ ions number

Density of dangling bonds of Co²⁺ ions (Å⁻²)

Density of dangling bonds of Co³⁺ ions (Å⁻²)

Total density of dangling bonds (Å⁻²)

Surface energy (J m⁻²)