Synthesis of infinite-layer LaNiO2 films by metal-organic deposition - Condensed Matter > SuperconductivityReportar como inadecuado




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Abstract: We report the synthesis of infinite-layer LaNiO2 thin films by metal organicdecomposition. Our work is aimed to synthesize perovskite-like oxides with 3d9electronic configuration, which is common to high-Tc copper oxides. The 3d9configuration is very rare in oxides other than cuprates. Ni1+ oxides, eventhough Ni1+ is an unusual oxidation state, may be one of very few candidates.One example of the Ni1+ phases is infinite-layer LaNiO2. The bulk synthesis ofLaNiO2 is difficult, but we demonstrate in this article that the thin-filmsynthesis of LaNiO2 by metal organic decomposition is rather easy. This is dueto the advantage of thin films with a large-surface-to-volume ratio, whichmakes oxygen diffusion prompt. Resistivity measurements indicate that LaNiO2 isessentially a metal but unfortunately with no trace of superconductivity yet.



Autor: D. Kaneko, K. Yamagishi, A. Tsukada, T. Manabe, M. Naito

Fuente: https://arxiv.org/



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