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Journal of Materials Science

, Volume 44, Issue 19, pp 5249–5255 | Cite as

Ab initio study of antiferroelectric PbZrO3 (001) surfaces

  • G. Pilania
  • D. Q. Tan
  • Y. Cao
  • V. S. Venkataramani
  • Q. Chen
  • R. RamprasadEmail author
Ferroelectrics

Abstract

We have carried out first-principles total-energy calculations of bulk and (001) surfaces of PbZrO3. The ground state for bulk PbZrO3 is determined to be the antiferroelectric orthorhombic phase, with the ferroelectric rhombohedral and paraelectric cubic phases being 0.14 and 0.39 eV per formula unit higher in energy, respectively. PbO- and ZrO2-terminated (001) surfaces, either clean or when hydroxyl species were adsorbed were considered. Surface relaxations, in-plane antiferroelectric distortions and modifications to the electronic structure due to the surfaces, and hydroxyl adsorbates on the surfaces were investigated. We find that while clean surfaces retained bulk-like behavior, hydroxyl adsorbates induce significant changes to the surface geometry as well as introduce electronic states in the band gap possibly rendering the surfaces metallic.

Keywords

BaTiO3 Hydroxyl Species Hydroxyl Adsorption ZrO2 Layer Surface Rumpling 

Notes

Acknowledgements

GP and RR would like to acknowledge financial support of this work by a grant from DARPA through a sub-contract from General Electric. Helpful discussions with Dr. Steve Boggs and Dr. Pamir Alpay are gratefully acknowledged.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • G. Pilania
    • 1
  • D. Q. Tan
    • 2
  • Y. Cao
    • 2
  • V. S. Venkataramani
    • 2
  • Q. Chen
    • 2
  • R. Ramprasad
    • 1
    Email author
  1. 1.Chemical, Materials, and Biomolecular Engineering, Institute of Materials ScienceUniversity of ConnecticutStorrsUSA
  2. 2.GE Global Research Center, One Research CircleNiskayunaUSA

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