In: Applied Physics A, 2007, vol. 89, no. 4, p. 933-940
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In: Applied Physics A, 2008, vol. 93, no. 3, p. 721-727
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In: Journal of Materials Science, 2013, vol. 48, no. 7, p. 2823-2828
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In: Journal of Materials Science, 2012, p. -
Misfit-layered Ca₃Co₄O₉ crystals were grown and characterized via XRD, SEM, and photo-emission spectroscopy (PES). The evolution of the intensity at the Fermi level (E F) with varying oxygen content was studied by PES. Oxygen species were successfully introduced and removed through O⁺ and H⁺ microwave-plasma (2.45 GHz, 2–5 mbar) treatments, respectively. A 5 min...
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