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

Journal Article · Mon Jun 30 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4886136· OSTI ID:22303397

Shigematsu, K. ^[1]; Fukumura, T. ^[1]; Toyoda, S. ^[2]; Ikenaga, E. ^[3]; Hasegawa, T. ^[1]

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1. Department of Chemistry, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
2. Department of Materials Science and Engineering, Kyoto University, Yoshida-honmachi, Kyoto 606-8501 (Japan)
3. JASRI/SPring-8, Mikazuki-cho, Hyogo 679-5198 (Japan)

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.

• OSTI ID: 22303397
• Journal Information: Applied Physics Letters, Vol. 104, Issue 26; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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