Antiferromagnetic correlations in the metallic strongly correlated transition metal oxide LaNiO3

H. Guo, Z. W. Li, L. Zhao, Z. Hu, C. F. Chang, C. Y. Kuo, W. Schmidt, A. Piovano, T. W. Pi, O. Sobolev, D. I. Khomskii, L. H. Tjeng, A. C. Komarek*

*此作品的通信作者

研究成果: Article同行評審

57 引文 斯高帕斯(Scopus)

摘要

The material class of rare earth nickelates with high Ni3+ oxidation state is generating continued interest due to the occurrence of a metal-insulator transition with charge order and the appearance of non-collinear magnetic phases within this insulating regime. The recent theoretical prediction for superconductivity in LaNiO3 thin films has also triggered intensive research efforts. LaNiO3 seems to be the only rare earth nickelate that stays metallic and paramagnetic down to lowest temperatures. So far, centimeter-sized impurity-free single crystal growth has not been reported for the rare earth nickelates material class since elevated oxygen pressures are required for their synthesis. Here, we report on the successful growth of centimeter-sized LaNiO3 single crystals by the floating zone technique at oxygen pressures of up to 150 bar. Our crystals are essentially free from Ni2+ impurities and exhibit metallic properties together with an unexpected but clear antiferromagnetic transition.

原文English
文章編號43
期刊Nature Communications
9
發行號1
DOIs
出版狀態Published - 1 十二月 2018

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