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

Research output: Contribution to journalArticle

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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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Surface reconstruction
Low energy electron diffraction
electron diffraction
Electron diffraction apparatus
periodic variations
Oxides
Diffraction patterns
energy
Electron microscopes
perovskites
Geometry
Electrons
diffraction patterns
incidence
electron microscopes
electron energy
oxides
room temperature
Temperature
geometry

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Vasić, R. ; Sadowski, J. T. ; Choi, Y. J. ; Zhou, H. D. ; Wiebe, C. R. ; Cheong, S. W. ; Rowe, J. E. ; Ulrich, M. D. / Surface reconstruction of hexagonal Y-doped HoMnO3 and LuMnO3 studied using low-energy electron diffraction. In: Physical Review B - Condensed Matter and Materials Physics. 2010 ; Vol. 81, No. 16.
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Surface reconstruction of hexagonal Y-doped HoMnO3 and LuMnO3 studied using low-energy electron diffraction. / Vasić, R.; Sadowski, J. T.; Choi, Y. J.; Zhou, H. D.; Wiebe, C. R.; Cheong, S. W.; Rowe, J. E.; Ulrich, M. D.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 81, No. 16, 165417, 09.04.2010.

Research output: Contribution to journalArticle

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T1 - Surface reconstruction of hexagonal Y-doped HoMnO3 and LuMnO3 studied using low-energy electron diffraction

AU - Vasić, R.

AU - Sadowski, J. T.

AU - Choi, Y. J.

AU - Zhou, H. D.

AU - Wiebe, C. R.

AU - Cheong, S. W.

AU - Rowe, J. E.

AU - Ulrich, M. D.

PY - 2010/4/9

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AB - 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.

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