Figure 5
Residual electron density of the (001) section on the basis of 168 reflections with sin θ/λ < 1.27. Potassium (K) is at the centre and O atoms are on the vertices of the map. Crosses point to the highest maxima associated with the Ta dumb-bells indicated by solid lines in the KTaO3 matrix of KTa1 + zO3. |