Metal-insulator transition in composition-tuned nickel oxide films

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Abstract/Contents

Abstract
Thin films of the solid solution Nd1−xLaxNiO3 are grown in order to study the expected 0 K phase transitions at a specific composition. We experimentally map out the structural, electronic and magnetic properties and an abrupt, possibly first order, insulator-metal transition is observed at x = 0.2. Raman spectroscopy and scanning transmission electron microscopy show that this is not associated with an abrupt global structural change. Density functional theory (DFT) and combined DFT and dynamical mean field theory (DFT-DMFT) calculations allow us to reproduce this behaviour just from thermodynamic considerations. Finally, resonant x-ray scattering and muon spin rotation suggest that coherent antiferromagnetism largely tracks the insulating phase around but that there are magnetic fluctuations in the system, possibly due to the first order nature of the 0 K transition.

Description

Type of resource Dataset, still image, text
Date modified April 18, 2023
Publication date December 22, 2022

Creators/Contributors

Author Fowlie, Jennifer
Contributor Georgescu, Alexandru
Contributor Suter, Andreas
Contributor Mundet, Bernat
Contributor Toulouse, Constance
Contributor Jaouen, Nicolas
Contributor Viret, Michel
Contributor Dominguez, Claribel
Contributor Gibert, Marta
Contributor Salman, Zaher
Contributor Prokscha, Thomas
Contributor Alexander, Duncan
Contributor Kreisel, Jens
Contributor Georges, Antoine
Contributor Millis, Andrew
Contributor Triscone, Jean-Marc

Subjects

Subject Metal-insulator transition
Genre Data
Genre Documentation
Genre Image
Genre Tabular data
Genre Data sets
Genre Dataset
Genre Tables (data)

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This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY).

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Preferred citation
Source data for "Metal-insulator transition in composition-tuned nickel oxide films". Stanford Digital Repository. Available at https://purl.stanford.edu/hc677dr8144. https://doi.org/10.25740/hc677dr8144.

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