The growth and domain structure of YBa2Cu3Ox films on neodymium gallate substrates with a deviation of the normal to the surface from the [110] direction in NdGaO3

Three-dimensional graphoepitaxial growth of oxide films by pulsed laser deposition

“…The studies of epitaxial growth in semiconductor het-434 erostructures showed that the tilt axis acts as an anchor setting 435 the initial epitaxial relation along the habit plane. Similarly, in 436 our previous studies [19][20][21] the 100 axes of the perovskite 437 films and the 110 axes of the fluorite films were parallel to 438 the substrate tilt axis [001] NGO for all deposition conditions. 439 In this study we assumed that this epitaxial relation remains 440 correct and limited the XRD studies to θ/2θ and ω scans 441 around the substrate tilt axis with an initial offset angle ω 0 .…”

“…12. Comparison of tilt of CeO 2 films on NGO TAS deposited by PLD (diamonds) and rf sputtering (squares, [19,20]) at high substrate tilt angles.…”

“…To our knowledge, 3DGE in all-oxide heterostructures was The study of CeO 2 /NGO heterostructures was continued using rf sputtering [19,20] and pulsed laser deposition (PLD) techniques [16,21]. Much higher deposition rate during rf sputtering (5-7 nm/min instead of 0.5 nm/min for e-beam evaporation) resulted in a more complicated behavior [19,20].…”

“…First observations of gradual increase in tilt of crystallographic planes of the film in CeO 2 deposition on NdGaO 3 tilted-axes substrates. (a) With e-beam evaporation (solid line, [18]) and rf sputtering (crosses, [19,20]). The tilt of CeO 2 film with standard epitaxial growth mode is shown by a dashed line.…”

“…Generally we note that the parameters of the films grown in 484 the vicinal range depend on conformity of the lattice structure 485 and the mismatch strain introduced by the substrate. The 486 fluorite films deposited on the perovskite substrates show 487 a wider rocking curve and higher deviation of the average 488 orientation from the (110) NGO plane compared with the 489 perovskite films, but much lower variation of the out-of-plane 490 YBCO deposition on perovskite substrates (see, e.g., [3], and [19][20][21]27]).…”