Reversible changes of epitaxial thin films from perovskite LaNiO3 to infinite-layer structure LaNiO2
作者： Masanori Kawai , Satoru Inoue , Masaichiro Mizumaki , Naomi Kawamura , Noriya Ichikawa
DOI: 10.1063/1.3078276
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摘要: An infinite-layer-structure epitaxial thin film of LaNiO2 was prepared by low-temperature reduction with CaH2 from a LaNiO3 grown on SrTiO3(100) substrate. The oxygen content changed reversibly the perovskite to infinite-layer without losing structural framework and topotactic relationship. Consequently, oxidation state Ni ions in trivalent divalent monovalent.
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