21 October 2004 Pulsed laser deposition of chromium oxides thin films: chemical stabilizations by capping and doping
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Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.582915
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania
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.
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Carmen-Daniela Stanoi, Carmen-Daniela Stanoi, Gabriel Socol, Gabriel Socol, Carmen Ristoscu, Carmen Ristoscu, Emanuel Axente, Emanuel Axente, D. Caiteanu, D. Caiteanu, Ion N. Mihailescu, Ion N. Mihailescu, Cristiana E.A. Grigorescu, Cristiana E.A. Grigorescu, Beatrice Bastide, Beatrice Bastide, Odile Monnereau, Odile Monnereau, Laurence Tortet, Laurence Tortet, T. Zhang, T. Zhang, } "Pulsed laser deposition of chromium oxides thin films: chemical stabilizations by capping and doping", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.582915; https://doi.org/10.1117/12.582915
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