| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Mundet, Bernat
Institut Català de Nanociència i Nanotecnologia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysiscitations
- 2024Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysiscitations
- 2024Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reductioncitations
- 2023Competition between Carrier Injection and Structural Distortions in Electron‐Doped Perovskite Nickelate Thin Filmscitations
- 2023Competition between Carrier Injection and Structural Distortions in Electron-Doped Perovskite Nickelate Thin Filmscitations
- 2022Optimizing vortex pinning in YBa2Cu3O7-x superconducting films up to high magnetic fieldscitations
- 2021Crossover between distinct symmetries in solid solutions of rare earth nickelatescitations
- 2021Crossover between distinct symmetries in solid solutions of rare earth nickelatescitations
- 2021High Performance of Superconducting YBa2Cu3O7 Thick Films Prepared by Single-Deposition Inkjet Printingcitations
- 2021High Performance of Superconducting YBa2Cu3O7 Thick Films Prepared by Single-Deposition Inkjet Printing
- 2020Embedded Magnetism in YBa2Cu3O7 Associated with Cu–O Vacancies within Nanoscale Intergrowths: Implications for Superconducting Current Performance
- 2020Suppression of superconductivity at the nanoscale in chemical solution derived YBa2Cu3O7−δ thin films with defective Y2Ba4Cu8O16 intergrowthscitations
- 2020Suppression of superconductivity at the nanoscale in chemical solution derived YBa2Cu3O7−δ thin films with defective Y2Ba4Cu8O16 intergrowths
- 2019Growth of all-chemical high critical current YBa2Cu3O7−δ thick films and coated conductors
- 2019Control of nanostructure and pinning properties in solution deposited YBa2Cu3O7−x nanocomposites with preformed perovskite nanoparticles
- 2019Accelerated growth by flash heating of high critical current trifluoroacetate solution derived epitaxial superconducting YBa2Cu3O7 filmscitations
- 2019Control of nanostructure and pinning properties in solution deposited YBaCuO nanocomposites with preformed perovskite nanoparticles
- 2019Accelerated growth by flash heating of high critical current Trifluoroacetate solution derived epitaxial superconducting YBa2Cu3O7 filmscitations
- 2018Atomic-scale characterization of structural distortions in perovskite oxide thin films
- 2018Epitaxial superconducting GdBa2Cu3O7−δ /Gd2O3 nanocomposite thin films from advanced low-fluorine solutionscitations
- 2018Epitaxial YBa2Cu3O7−x nanocomposite films and coated conductors from BaMO3 (M = Zr, Hf) colloidal solutions
- 2017Epitaxial superconducting GdBa2Cu3O7−δ/Gd2O3 nanocomposite thin films from advanced low-fluorine solutions
- 2017Probing localized strain in solution-derived YBa2Cu3O7−δ nanocomposite thin filmscitations
- 2017Epitaxial superconducting GdBa2Cu3O7−δ /Gd2O3 nanocomposite thin films from advanced low-fluorine solutionscitations
- 2016Unique nanostructural features in Fe, Mndoped YBCO thin filmscitations
- 2016Magnetic stability against calcining of microwavesynthesized CoFe2O4 nanoparticlescitations
Places of action
| Organizations | Location | People |
|---|
article
Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reduction
Abstract
The metal-hydride-based “topochemical reduction” process has produced several thermodynamically unstable phases across various transition metal oxide series with unusual crystal structures and nontrivial ground states. Here, by such an oxygen (de-)intercalation method we synthesis a samarium nickelate with ordered nickel valences associated with tri-component coordination configurations. This structure, with a formula of Sm<sub>9</sub>Ni<sub>9</sub>O<sub>22</sub> as revealed by four-dimensional scanning transmission electron microscopy (4D-STEM), emerges from the intricate planes of {303}<sub>pc</sub> ordered apical oxygen vacancies. X-ray spectroscopy measurements and ab initio calculations show the coexistence of square planar, pyramidal, and octahedral Ni sites with mono-, bi-, and tri-valences. It leads to an intense orbital polarization, charge-ordering, and a ground state with a strong electron localization marked by the disappearance of ligand-hole configuration at low temperature. This nickelate compound provides another example of previously inaccessible materials enabled by topotactic transformations and presents an interesting platform where mixed Ni valence can give rise to exotic phenomena. © 2024 American Chemical Society.