Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 321, Issue 18, Pages 2852-2854Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2009.04.037
Keywords
Magnetic oxide; Vanadium perovskite; Thin film; Pauli paramagnetic; Pulsed laser deposition; X-ray absorption
Funding
- Director, Office of Science, Office of Basic Energy Sciences
- US Department of Energy [DE-AC0205CH11231]
- National Science Foundation
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Epitaxial thin films of CaVO3 were synthesized on SrTiO3, LaAlO3 and (La0.27Sr0.73)(Al0.65Ta0.35)O-3 substrates by pulsed laser deposition. All CaVO3 films, independent of epitaxial strain, exhibit metallic and Pauli paramagnetic behavior as CaVO3 single crystals. X-ray absorption measurements confirmed the 4+ valence state for Vanadium ions. With prolonged air exposure, an increasing amount of V3+ is detected and is attributed to oxygen loss in the near surface region of the films. (C) 2009 Elsevier B.V. All rights reserved.
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