Surface reconstruction of hexagonal Y-doped HoMnO3 and LuMnO3 studied using low-energy electron diffraction

R. Vasić, J. T. Sadowski, Y. J. Choi, H. D. Zhou, C. R. Wiebe, S. W. Cheong, J. E. Rowe, M. D. Ulrich

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Abstract

We have investigated the (0001) surfaces of several hexagonal manganite perovskites by low-energy electron diffraction (LEED) in order to determine if the surface periodicity is different from that of the bulk materials. These LEED studies were conducted using near-normal incidence geometry with a low energy electron microscope (LEEM)/LEED apparatus from room temperature to 1200°C and with an electron energy in the range of 15-50 eV. Diffraction patterns showed features of bulk-terminated periodicity as well as a 2×2 surface reconstruction. Possible origins for this surface reconstruction structure are discussed and comparisons are made with surface studies of other complex oxides.

Original languageEnglish
Article number165417
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number16
DOIs
Publication statusPublished - 2010 Apr 9

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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