Cleaving-temperature dependence of layered-oxide surfaces

Abstract

The surfaces generated by cleaving non-polar, two-dimensional oxides are often considered to be perfect or ideal. However, single particle spectroscopies on Sr2RuO4, an archetypal non-polar two dimensional oxide, show significant cleavage temperature dependence. We demonstrate that this is not a consequence of the intrinsic characteristics of the surface: lattice parameters and symmetries, step heights, atom positions, or density of states. Instead, we find a marked increase in the density of defects at the mesoscopic scale with increased cleave temperature. The potential generality of these defects to oxide surfaces may have broad consequences to interfacial control and the interpretation of surface sensitive measurements.

References in corpus (8)

• The SIESTA method for ab initio order-N materials simulation
• Efficient index handling of multidimensional periodic boundary conditions
• Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8+d
• Fermi Surface, Surface States, and Surface Reconstruction in Sr2RuO4
• Quantitative analysis of Sr2RuO4 ARPES spectra: Many-body interactions in a model Fermi liquid
• Surface electronic structure of Sr2RuO4
• A local metallic state in globally insulating $L{a}_{1.24}S{r}_{1.76}M{n}_2{O}_7$ well above the metal-insulator transition
• Surface effects on the orbital order in the single layered manganite La0.5Sr1.5MnO4

Cited by in corpus (15)

• Edge states of Sr${}_2$RuO${}_4$ detected by in-plane tunneling spectroscopy
• Emergence of a coherent in-gap state in SmB6 Kondo insulator revealed by scanning tunneling spectroscopy
• Nodeless spin triplet superconducting gap in Sr2RuO4
• Nanometer-scale striped surface terminations on fractured SrTiO${}_3$ surfaces
• Determining the Surface-To-Bulk Progression in the Normal-State Electronic Structure of Sr2RuO4 by Angle-Resolved Photoemission and Density Functional Theory
• Quasiparticle Interference and Strong Electron-Mode Coupling in the Quasi-One-Dimensional Bands of Sr${}_2$RuO${}_4$
• Microscopic theory of tunneling spectroscopy in Sr${}_2$RuO${}_4$
• Magnetic-Field Tunable Intertwined Checkerboard Charge Order and Nematicity in the Surface Layer of Sr${}_2$RuO${}_4$
• High chemical activity of a perovskite surface: reaction of CO with Sr${}_3$Ru${}_2$O${}_7$
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• Point defects at cleaved Sr${}_{n+1}$Ru${}_n$O${}_{3n+1}$(001) surfaces
• Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr${}_4$Ru${}_3$O${}_{10}$
• A survey of fractured SrTiO${}_3$ surfaces: from the micro-meter to nano-meter scale
• Depth dependence of itinerant character in Mn-substituted Sr3Ru2O7
• Why Scanning Tunneling Microscopy on Sr${}_2$RuO${}_4$ sometimes doesn't see the superconducting gap