publication . Other literature type . Article . 2015

Topotactic synthesis of strontium cobalt oxyhydride thin film with perovskite structure

Hiroki Wadati; AKIRA CHIKAMATSU; Tsukasa Katayama; YUICHI YOKOYAMA; Tomoteru Fukumura;
Open Access
  • Published: 01 Oct 2015
  • Publisher: AIP Publishing
The substitution of hydride anions (H−) into transition metal oxides has recently become possible through topotactic reactions or high-pressure synthesis methods. However, the fabrication of oxyhydrides is still difficult because of their inherently less-stable frameworks. In this study, we successfully fabricated perovskite SrCoOxHy thin films via the topotactic hydride doping of brownmillerite SrCoO2.5 epitaxial thin films with CaH2. The perovskite-type cation framework was maintained during the topotactic treatment owing to epitaxial stabilization. Structural and chemical analyses accompanied by X-ray absorption spectroscopy measurements revealed that the dop...
free text keywords: Physics, QC1-999
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