Reciprocal space maps (intensity scale in e ) reveal that most of the film is fully strained with in-plane lattice parameters of a pc = 3.944 ± 0.001 ( d ) and b pc = 3.943 ± 0.001 ( e ) ( Q x , Q y and Q z correspond to inverse lattice spacings along Cartesian axes, z is out-of-plane). Black dots calculated from pseudocubic STO film lattice parameters (inset of d ); DSO substrate lattice parameters ( a o = 5.440 , b o = 5.713 , c o = 7.887 ) 25 ; and the bulk STO lattice parameter ( a c = 3.905 ) 43 . Dashed lines link black dots for the STO film and bulk STO. Data for sample 1 obtained prior to IDE deposition.
