2008/07/16 by Y. Pennec, N. J. C. Ingle, Ilya Elfimov +8 · 2 citations
Materials Science · Medicine · Neuroscience · Physics and Astronomy · #Advanced Condensed Matter Physics #Electronic and Structural Properties of Oxides #Ion Channels and Receptors #Magnetic and transport properties of perovskites and related materials #Pain Mechanisms and Treatments #Thermoregulation and physiological responses #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.101.216103
arxiv created 2008/07/16 · arxiv updated 2009/12/01 · openalex publication_date 2012/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
The surfaces generated by cleaving nonpolar, two-dimensional oxides are often considered to be perfect or ideal. However, single particle spectroscopies on Sr2RuO4, an archetypal nonpolar 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.