skip to main content

Title: Surface double-layer structure in (110) oriented BiFeO{sub 3} thin film

Surface double-layer structure different from the interior was found in BiFeO{sub 3} thin film grown on SrRuO{sub 3} covered SrTiO{sub 3} (110) substrate by pulsed laser deposition. It was shown that BiFeO{sub 3} film exhibits epitaxial phase with single domain. X-ray reflectivity and X-ray photoelectron spectroscopy results revealed a skin layer of less than 1 nm with a reduced electron density and different surface state. Grazing incidence x-ray diffraction convinced a surface multi-domain structure of several nm beneath the surface skin layer. The double-layer near surface structure would be originated from the large depolarization field produced by the single-domain structure with strain.
Authors:
; ; ; ;  [1] ; ; ; ;  [2]
  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204 (China)
  2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
22392026
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BISMUTH COMPOUNDS; DEPOLARIZATION; DOMAIN STRUCTURE; ELECTRON DENSITY; ENERGY BEAM DEPOSITION; EPITAXY; IRON OXIDES; LASER RADIATION; LAYERS; PULSED IRRADIATION; REFLECTIVITY; RUTHENIUM OXIDES; STRAINS; STRONTIUM COMPOUNDS; SUBSTRATES; SURFACES; THIN FILMS; TITANIUM OXIDES; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY