Epitaxial growth of biferroic YMnO<inf>3</inf>(0 0 0 1) on platinum electrodes

X. Martí, F. Sánchez, D. Hrabovsky, J. Fontcuberta, V. Laukhin, V. Skumryev, M. V. García-Cuenca, C. Ferrater, M. Varela, U. Lüders, J. F. Bobo, S. Estradé, J. Arbiol, F. Peiró

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Epitaxial films of the biferroic YMnO3 (YMO) oxide have been grown on platinum-coated SrTiO3(1 1 1) and Al2O3(0 0 0 1) substrates. The platinum electrodes, (1 1 1) oriented, are templates for the epitaxy of the hexagonal phase of YMO with a (0 0 0 1) out-of-plane orientation, which is of interest as this is the polarization direction of YMO. X-ray diffractometry indicates the presence of two crystal domains, 60° rotated in-plane, in the Pt(1 1 1) layers which subsequently are transferred on the upperlaying YMO. Cross-section analysis by high-resolution transmission electron microscopy (HRTEM) of YMnO3/Pt/SrTiO3(1 1 1) shows high-quality epitaxy and sharp interfaces across the structure in the observed region. We present a detailed study of the epitaxial growth of the hexagonal YMO on the electrodes. © 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)288-294
JournalJournal of Crystal Growth
Issue number2
Publication statusPublished - 15 Feb 2007


  • A1. X-ray diffraction
  • A3. Physical vapor deposition processes
  • B1. Oxides
  • B2. Magnetoelectric materials
  • B2. Multiferroic materials


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