• Corpus ID: 119505246

Comment on "Evidence for absence of metallic surface states in BiO2-terminated BaBiO3 thin films"

  title={Comment on "Evidence for absence of metallic surface states in BiO2-terminated BaBiO3 thin films"},
  author={Diego Rubi and A. M. Llois and Ver{\'o}nica L. Vildosola},
  journal={arXiv: Materials Science},
In a recent work by Ji Seop Oh et al., BaBiO3(001) thin films were grown on SrTiO3 by Pulsed Laser Deposition. It was argued that the films are BiO2-terminated from the modelling of angle-resolved photoemission spectroscopy experiments. The authors claim, in opposition to previous theoretical predictions, that there are no metallic surface states on their films. In this short comment we question that the authors have enough evidence to make such a claim, as we consider that the large mismatch… 
1 Citations
BaBiO3—From single crystals towards oxide topological insulators
Abstract BaBiO3 is an oxide perovskite with a wide variety of interesting properties. It was expected that the compound would behave like a metal. However, experiments revealed that BaBiO3 is not


Evidence for absence of metallic surface states in BiO2-terminated BaBiO3 thin films
Abstract We investigated the atomic configuration and the electronic structure of a BaBiO3 (BBO) thin film and its (001) surface. It was theoretically predicted that two-dimensional electron gases
Domain matching epitaxy of BaBiO3 on SrTiO3 with structurally modified interface
The perovskite BaBiO3 (BBO) is a versatile oxide parent material which displays superconductivity upon p-doping, while n-doping has been predicted to establish a wide-bandgap topological insulator
Mechanism to generate a two-dimensional electron gas at the surface of the charge-ordered semiconductor BaBiO3.
In this Letter, we find by means of first-principles calculations a new physical mechanism to generate a two-dimensional electron gas, namely, the breaking of charge ordering at the surface of a
Surface structure analysis of atomically smooth BaBiO3 Films
Using low-energy time-of-flight scattering and recoil spectroscopy TOFSARS and mass spectroscopy of recoiled ions MSRI we analyze the surface structure of an atomically smooth BaBiO3 film grown by
Anisotropic suppression of octahedral breathing distortion with the fully strained BaBiO3/BaCeO3 heterointerface
While the physiochemical effects of octahedral tilting and rotating distortions have been studied extensively, octahedral breathing distortion (OBD) at heterointerfaces has rarely been explored.
Structural, vibrational and quasiparticle properties of the Peierls semiconductor $\rm BaBiO_3$: a hybrid functional and self-consistent GW+vertex-corrections study
$\rm BaBiO_3$ is characterized by a charge disproportionation with half of the Bi atoms possessing a valence 3+ and half a valence 5+. Because of selfinteraction errors, local and semi-local density
Superconductivity-localization interplay and fluctuation magnetoresistance in epitaxial BaPb$_{1-x}$Bi$_x$O$_3$ thin films
BaPb$_{1-x}$Bi$_x$O$_3$ is a superconductor, with transition temperature $T_c=11$ K, whose parent compound BaBiO$_3$ possess a charge ordering phase and perovskite crystal structure reminiscent of
Generalized Gradient Approximation Made Simple.
A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
Accurate and simple analytic representation of the electron-gas correlation energy.
  • Perdew, Wang
  • Physics, Medicine
    Physical review. B, Condensed matter
  • 1992
A simple analytic representation of the correlation energy for a uniform electron gas, as a function of density parameter and relative spin polarization \ensuremath{\zeta}, which confirms the practical accuracy of the VWN and PZ representations and eliminates some minor problems.
  • vibrational, and quasiparticle properties of the peierls semiconductor babio3: A hybrid functional and self-consistent gw+vertex-corrections study, Phys. Rev. B 81
  • 2010