Crossover between distinct symmetries in solid solutions of rare earth nickelates

A strong coupling of the lattice to functional properties is observed in many transition metal oxide systems such as the ABO3 perovskites. In the quest for tailor-made materials it is essential to be able to control the structural properties of the compound(s) of interest. Here, thin film solid solutions that combine NdNiO3 and LaNiO3, two materials with perovskite structure but distinct space-groups, are analyzed. Raman spectroscopy and scanning transmission electron microscopy are combined in a synergistic approach to fully determine the mechanism of the structural crossover with chemical composition. It is found that the symmetry transition is achieved by phase coexistence in a way that depends upon the substrate selected. These results carry implications for analog-tuning of physical properties in future functional materials based on these compounds.

    Organizational unit
    Triscone Group
    Creative Commons Attribution 4.0 International
Publication date14/07/2021
Retention date17/07/2031
accessLevelPublicAccess levelPublic
duaNoneContract on the use of data
  • Fowlie, Jennifer
  • Mundet, Bernat
  • Toulouse, Constance
  • Schober, Alexander
  • Guennou, Mael
  • Dominguez Ordonez, Claribel
  • Gibert, Marta
  • Alexander, Duncan
  • Kreisel, Jens
  • Triscone, Jean-Marc
  • Quality (0 Reviews)
  • Usefulness (0 Reviews)

Datacite metadata

Packages information

Similar archives

Triscone Group
Generation of tunable stochastic sequences using the Insulator-Metal transition
2022 accessLevelPublic Public 22.4 MB
Triscone Group
Dynamics of the electrically induced insulator-to-metal transition in rare-earth nickelates - Phys. Rev. B 104 165141 (2021)
2021 accessLevelPublic Public 49.8 MB
Triscone Group
Structural and Electronic Properties of SrCuO2+delta Thin Films
2022 accessLevelPublic Public 83.1 MB
Triscone Group
Competition between carrier injection and structural distortions in electron-doped perovskite nickelate thin films
2023 accessLevelPublic Public 61.9 MB
All rights reserved by DLCM and the University of GenevaunigeBlack