Reduction and oxidation of SrCoO2.5 thin films at low temperatures
Noriya Ichikawa1, Monika Iwanowska, Masanori Kawai
1Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. nori@scl.kyoto-u.ac.jp
Dalton Transactions (Cambridge, England : 2003)
|May 16, 2012
Abstract:
Brownmillerite SrCoO(2.5) (010) thin films synthesized by pulsed laser deposition became amorphous when reduced at low temperatures by CaH(2), indicating that the infinite-layer structure with the square planar Co(2+)O(4) configuration is unstable. Ferromagnetic and conducting perovskite SrCoO(3) epitaxial thin films, on the other hand, were obtained topotactically at room temperature by oxidation with NaClO.
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