Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series

article Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series published Kerstin Wissel author Fabio Bernardini author Heesu Oh author Sami Vasala author Roland Schoch author 484670000-0003-2061-7289 Björn Blaschkowski author Pieter Glatzel author Matthias Bauer author 472410000-0002-9294-6076 Oliver Clemens author Andrés Cano author 35 department 306 department Understanding high-temperature unconventional superconductivity has become a long-lasting problem in which the cuprates stand as central reference materials. Given this impasse, the recent discovery of superconductivity in analogous nickelate thin films represents a fundamental breakthrough calling for the identification of additional materials in this class. In particular, thermodynamically more robust systems are required to “upgrade” nickelate superconductors from thin films to bulk samples. Here, we contribute in this direction by reporting the synthesis of the new single-layer T′ Pr2NiO3F compound, assessing this synthesis in relation to the only previous T′ nickelate La2NiO3F, and analyzing the electronic properties across the R2NiO3F series (R = La–Lu) via first-principles calculations. We find that these mixed anion systems have a comparatively high degree of stability and their synthesis enables a fine-tuning of their composition as inferred from their characterization. Furthermore, we find that these unprecedented square-planar nickelates hold great promise as prospective superconductors due to their exceptional electronic structure. American Chemical Society (ACS)2022 eng Materials ChemistryGeneral Chemical EngineeringGeneral Chemistry Chemistry of Materials 0897-4756 1520-500210.1021/acs.chemmater.2c00726 34167201-7209 K. Wissel et al., “Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series,” Chemistry of Materials, vol. 34, no. 16, pp. 7201–7209, 2022, doi: <a href="https://doi.org/10.1021/acs.chemmater.2c00726">10.1021/acs.chemmater.2c00726</a>. Wissel, K., Bernardini, F., Oh, H., Vasala, S., Schoch, R., Blaschkowski, B., Glatzel, P., Bauer, M., Clemens, O., & Cano, A. (2022). Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series. Chemistry of Materials, 34(16), 7201–7209. <a href="https://doi.org/10.1021/acs.chemmater.2c00726">https://doi.org/10.1021/acs.chemmater.2c00726</a> K. Wissel, F. Bernardini, H. Oh, S. Vasala, R. Schoch, B. Blaschkowski, P. Glatzel, M. Bauer, O. Clemens, A. Cano, Chemistry of Materials 34 (2022) 7201–7209. Wissel, Kerstin, Fabio Bernardini, Heesu Oh, Sami Vasala, Roland Schoch, Björn Blaschkowski, Pieter Glatzel, Matthias Bauer, Oliver Clemens, and Andrés Cano. “Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series.” Chemistry of Materials 34, no. 16 (2022): 7201–9. <a href="https://doi.org/10.1021/acs.chemmater.2c00726">https://doi.org/10.1021/acs.chemmater.2c00726</a>. Wissel, Kerstin, et al. “Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series.” Chemistry of Materials, vol. 34, no. 16, American Chemical Society (ACS), 2022, pp. 7201–09, doi:<a href="https://doi.org/10.1021/acs.chemmater.2c00726">10.1021/acs.chemmater.2c00726</a>. @article{Wissel_Bernardini_Oh_Vasala_Schoch_Blaschkowski_Glatzel_Bauer_Clemens_Cano_2022, title={Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series}, volume={34}, DOI={<a href="https://doi.org/10.1021/acs.chemmater.2c00726">10.1021/acs.chemmater.2c00726</a>}, number={16}, journal={Chemistry of Materials}, publisher={American Chemical Society (ACS)}, author={Wissel, Kerstin and Bernardini, Fabio and Oh, Heesu and Vasala, Sami and Schoch, Roland and Blaschkowski, Björn and Glatzel, Pieter and Bauer, Matthias and Clemens, Oliver and Cano, Andrés}, year={2022}, pages={7201–7209} } Wissel K, Bernardini F, Oh H, et al. Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series. Chemistry of Materials. 2022;34(16):7201-7209. doi:<a href="https://doi.org/10.1021/acs.chemmater.2c00726">10.1021/acs.chemmater.2c00726</a> 409932023-01-30T16:44:52Z2023-01-31T08:01:26Z