The role of the interface in controlling the epitaxial relationship between orthorhombic ${\text{LaInO}}_{\text{3}}$ and cubic ${\text{BaSnO}}_{\text{3}}$

Abstract

Epitaxial perovskite oxide interfaces with different symmetry of the epitaxial layers have attracted considerable attention due to the emergence of novel behaviors and phenomena. In this paper, we show by aberration corrected transmission electron microscopy that orthorhombic ${\text{LaInO}}_{\text{3}}$ films grow in form of three different types of domains on the cubic ${\text{BaSnO}}_{\text{3}}$ pseudosubstrate. Quantitative evaluation of our TEM data shows that $c_{pc}$-oriented and $a_{pc}/b_{pc}$-oriented domains are present with similar probability. While continuum elasticity theory suggests that $c_{pc}$-oriented domains should exhibit a significantly higher strain energy density than $a_{pc}/b_{pc}$-oriented domains, density functional calculations confirm that $c_{pc}$- and $a_{pc}$-oriented domains on ${\text{BaSnO}}_{\text{3}}$ have similar energies.

References in corpus (4)

• Restoring the density-gradient expansion for exchange in solids and surfaces
• Generalized gradient approximation for solids and their surfaces
• High Mobility in a Stable Transparent Perovskite Oxide
• Physical properties of transparent perovskite oxides (Ba,La)SnO3 with high electrical mobility at room temperature

Cited by in corpus (4)

• A consistent picture of excitations in cubic BaSnO${}_3$ revealed by combining theory and experiment
• Tuning two-dimensional electron (hole) gases at LaInO${}_3$/BaSnO${}_3$ interfaces: Impact of polar distortions, termination, and thickness
• Fingerprints of optical absorption in the perovskite LaInO${}_3$: Insight from many-body theory and experiment
• Critical role of terminating layer in formation of 2DEG state at the $LaIn{O}_3$/$BaSn{O}_3$ interface