ISIS Neutron and Muon Source Data Journal

Existence of magnetic order in superconducting Nickelates?

Abstract: Recently, superconductivity has been surprisingly reported at 15 K in Sr-doped NdNiO2 suggesting the existence of a new family of high-temperature superconductors. The structure of this nickel oxide consists in a stacking of NiO2 layers separated by rare-earth spacer layer, stabilizing the unusual Ni1+ oxidation state, corresponding to 3d9 electronic configuration, similarly to the cuprates. Our recent measurements bring evidence for a magnetic order in two samples, a pure and 5% Sr-doped (Nd,Sr)NiO2 that could be at the origin of magnetic fluctuations playing a key role in the emergence of superconductivity. We propose to precisely study the newly discovered antiferromagnetic phase in the (Nd1-xSrx)NiO2 x=0,0.05,0.1,0.15, the amplitude of the corresponding magnetic moment and its evolution as a function of temperature. We thus ask for 3 days on the WISH high resolution diffractometer.

Principal Investigator: Dr Elodie TAILLEUR
Local Contact: Dr Pascal Manuel
Experimenter: Dr Bounoua Bounoua
Experimenter: Dr Victor Balédent

DOI: 10.5286/ISIS.E.RB2210253

ISIS Experiment Number: RB2210253

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Elodie TAILLEUR et al; (2022): Existence of magnetic order in superconducting Nickelates?, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2210253

Data is released under the CC-BY-4.0 license.