Figure 4

Crystal structures of
(a) SrTiO3 (b) Sr2Ti6O13 and (c) SrTi11O20. Green, blue and red circles denote Sr, Ti and O atoms, respectively. Total density of states of (d) SrTiO3, (e) Sr2Ti6O13 and (f) SrTi11O20 which was obtained by HSE06.
Crystal structures of
(a) SrTiO3 (b) Sr2Ti6O13 and (c) SrTi11O20. Green, blue and red circles denote Sr, Ti and O atoms, respectively. Total density of states of (d) SrTiO3, (e) Sr2Ti6O13 and (f) SrTi11O20 which was obtained by HSE06.