********************************************************************************* A pdf file named as “Overall description of the database_read me first” describes the overall directory of this database, including the physical meaning of each parameters and explanations about how the data are analyzed. Data of other figures were named as 'Data of Figure XXX'. The raw data of Figure 1 were displayed in separated text files named with corresponding temperature. From hidden metal-insulator transition to Planckian-like dissipation by tuning the oxygen content in a nickelate. 6, 72 (2021) doi: 10.1038/s41534-x Įxperimental data in text, calculations in excelĭata repository contains electrical transport and conducting AFM experimental data and their analysis presented in the paper: Guo, Q., Noheda, B. Groningen Digital Competence Centre (University of Groningen) 6, 72 (2021)ĭataset: From hidden metal-insulator transition to Planckian-like dissipation by tuning the oxygen content in a nickelate Rare-earth nickelates, Metal-insulator transition, Percolation, Planckian dissipation These results could provide experimental support for recent theoretical predictions of disorder in a two-fluid model as a possible origin of Planckian dissipation. It is shown that sufficient oxygenation leads to linear temperature dependence of resistivity in the metallic state, with a scattering rate directly proportional to temperature.

Only upon further oxygenation is the global metallic state (with a change in the resistivity slope) eventually achieved. Increasing oxygen content increases the connectivity of the metallic regions and the metal-insulator transition is first revealed, upon reaching the percolation threshold, by the presence of hysteresis. Heavily oxygen deficient NdNiO3 (NNO) films, which are insulating due to electron localization, contain pristine regions that undergo a hidden metal-insulator transition.

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