Layer-by-layer growth of SrFeO3- thin films on atomically flat single-terminated SrRuO3/SrTiO3 (111) surfaces

Ab initiostudy of nontrivial topological phases in corundum-structured(M2O3)/(Al2O3Afonso1, Pardo2 2015Phys. Rev. B101110View full textAdd to dashboardCite

“…We propose here an analogous design but building the honeycomb lattice in a more natural way, avoiding the use of a largely unstable surface of the perovskite, the highly polar (111) surface that only recently has started to become accessible for experimentalists. [43][44][45][46][47] We will use instead a non-polar surface based on the corundum structure 48 that provides intrisically a transition metal-based honeycomb lattice.…”

Emergence of Room-Temperature Magnetic Ordering in Artificially Fabricated Ordered-Double-Perovskite Sr2FeRuO6

“…The single steps and atomically flat terraces observed on the SRO buffer surfaces were nearly exact replicas of those observed on the STO (111) substrates, providing an ideal template indispensable for the layer-by-layer growth of the (SRO) 1 (SFO) 1 superlattice. 13 In situ high-pressure reflection high-energy electron diffraction (RHEED) was employed for reliable digital control of the commensurate SRO and SFO layers during the film growth. 13,14 A 20 keV electron beam with an incidence angle of around 1.3°w as used to record RHEED diffraction patterns and intensity profiles in specular reflection geometry.…”

Interfacial B-site atomic configuration in polar (111) and non-polar (001) SrIrO3/SrTiO3 heterostructures

“…However, epitaxial growth along (111) is challenging due to the polar nature of its surface, which is prone to complicated reconstructions that are difficult to control. Nonetheless, buoyed by the previously mentioned theoretical motivation, examples of (111) perovskite epitaxial film synthesis have been reported to date in bilayer/trilayer [10][11][12][13][14][15][16][17] architectures and also superlattices. [18][19][20][21][22] Furthermore, growth along (111) has unlocked intriguing phenomena that do not exist in the (001) direction, 17,19,22 thus revealing emergent properties that depend on crystal orientation and lattice symmetry.…”