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Proceedings Paper

Pulsed laser deposition of chromium oxides thin films: chemical stabilizations by capping and doping
Author(s): Carmen-Daniela Stanoi; Gabriel Socol; Carmen Ristoscu; Emanuel Axente; D. Caiteanu; Ion N. Mihailescu; Cristiana E.A. Grigorescu; Beatrice Bastide; Odile Monnereau; Laurence Tortet; T. Zhang
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Paper Abstract

The half-metallic ferromagnetic chromium dioxide (Tc = 390 K) is a prospective material for spintronics applications. We employed pulsed laser deposition (PLD) to grow thin films of various chromium oxides. The experiments have been carried out in oxygen at different dynamical pressures, using a KrF* laser source (λ = 248 nm, τFWHM ≥ 30 ns), various chromium oxide targets, such as CrO3, Cr8O21 (the latter ones both pure and doped with Y and Sb respectively, for stabilization purposes) and sapphire substrates (c-cut). We optimized the laser fluence. To avoid CrO2 reduction to Cr2O3 in very thin films when kept in atmospheric air, we applied a protection with gold. X-ray diffraction, electron microscopy and Raman spectroscopy evidence uniform films containing CrO2.

Paper Details

Date Published: 21 October 2004
PDF: 7 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.582915
Show Author Affiliations
Carmen-Daniela Stanoi, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Gabriel Socol, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Carmen Ristoscu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Emanuel Axente, National Institute for Laser, Plasma, and Radiation Physics (Romania)
D. Caiteanu, Univ. Ovidius Constanta (Romania)
Ion N. Mihailescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Cristiana E.A. Grigorescu, National Institute of Research & Development for Optoelectronics (Romania)
Beatrice Bastide, Lab. MADIREL, CNRS, and Univ. de Provence (France)
Odile Monnereau, Lab. MADIREL, CNRS, and Univ. de Provence (France)
Laurence Tortet, Lab. MADIREL, CNRS, and Univ. de Provence (France)
T. Zhang, Imperial College of Science, Technology, and Medicine (United Kingdom)


Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics

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