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Title: Sr{sub 2}MgMoO{sub 6−δ} thin films fabricated using pulsed-laser deposition with high concentrations of oxygen vacancies

We fabricated epitaxial thin films of oxygen-vacant Sr{sub 2}MgMoO{sub 6−δ} using pulsed laser deposition. The films showed low resistivity of the order of 10{sup −2} Ω cm at 300 K. X-ray diffraction analyses revealed that Mg and Mo ions in the Sr{sub 2}MgMoO{sub 6−δ} films were considerably disordered, compared to those in bulk Sr{sub 2}MgMoO{sub 6−δ}. The proportion of oxygen vacancies estimated through hard x-ray photoemission measurements was as large as 0.37, and correlated well with the Mg/Mo ordering.
Authors:
 [1] ; ;  [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [2] ;  [5]
  1. Department of Chemistry, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
  2. (Japan)
  3. Department of Materials Science and Engineering, Kyoto University, Yoshida-honmachi, Kyoto 606-8501 (Japan)
  4. JASRI/SPring-8, Mikazuki-cho, Hyogo 679-5198 (Japan)
  5. (KAST), Kawasaki, Kanagawa 213-0012 (Japan)
Publication Date:
OSTI Identifier:
22303397
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 26; 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; CONCENTRATION RATIO; ENERGY BEAM DEPOSITION; EPITAXY; HARD X RADIATION; LASER RADIATION; MAGNESIUM COMPOUNDS; MAGNESIUM IONS; MOLYBDATES; MOLYBDENUM IONS; OXYGEN; PHOTOEMISSION; PULSED IRRADIATION; STRONTIUM COMPOUNDS; THIN FILMS; VACANCIES; X-RAY DIFFRACTION