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Title: Engineering the microstructure and magnetism of La{sub 2}CoMnO{sub 6−δ} thin films by tailoring oxygen stoichiometry

We report on the magnetic and structural properties of ferromagnetic-insulating La{sub 2}CoMnO{sub 6−δ} thin films grown on top of (001) SrTiO{sub 3} substrates by means of RF sputtering technique. Careful structural analysis, by using synchrotron X-ray diffraction, allows identifying two different crystallographic orientations that are closely related to oxygen stoichiometry and to the features (coercive fields and remanence) of the hysteresis loops. Both Curie temperature and magnetic hysteresis turn out to be dependent on the oxygen stoichiometry. In situ annealing conditions allow tailoring the oxygen content of the films, therefore controlling their microstructure and magnetic properties.
Authors:
; ; ; ; ; ; ; ;  [1] ; ;  [2] ;  [1] ;  [3]
  1. Institut de Ciència de Materials de Barcelona-CSIC, Campus UAB, E-08193 Bellaterra (Spain)
  2. Institut Català de Nanociència i Nanotecnologia, ICN2-CSIC, Campus UAB, E-08193 Bellaterra (Spain)
  3. (Spain)
Publication Date:
OSTI Identifier:
22395533
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 24; 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; ANNEALING; COBALT COMPOUNDS; CRYSTAL GROWTH; CRYSTAL STRUCTURE; CURIE POINT; HYSTERESIS; LANTHANUM COMPOUNDS; MAGNETIC PROPERTIES; MAGNETISM; MANGANATES; MICROSTRUCTURE; OXYGEN; SPUTTERING; STOICHIOMETRY; STRONTIUM TITANATES; SUBSTRATES; THIN FILMS; X-RAY DIFFRACTION