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

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4904410· OSTI ID:22395533

Galceran, R.; Frontera, C.; Balcells, Ll.; Cisneros-Fernández, J.; López-Mir, L.; Bozzo, B.; Pomar, A.; Sandiumenge, F.; Martínez, B. ^[1]; Roqueta, J.; Santiso, J. ^[2]; Bagués, N. ^[1]

---

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)

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.

• OSTI ID: 22395533
• Journal Information: Applied Physics Letters, Vol. 105, Issue 24; 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
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