Figure 1

AFM analysis during growth of Sr rich STO.

(a–d) AFM topographies for substrate, 0.5 u.c., 0.8 u.c. and 1.5 u.c. Sr rich STO on STO, respectively. (a,d) are measured by the ex-situ AFM, while (b,d) are measured by the in-situ AFM. (e) Line profiles for the markers in (d).