ISIS Neutron and Muon Source Data Journal

Pressure dependence of the crystal structure of the strongly correlated bilayer ruthenate Sr3Ru2O7

Abstract: Ruthenium-oxides are important strongly correlated electron systems: the bilayer ruthenate Sr3Ru2O7 shows field-induced electronic order, while single-layer Sr2RuO4 is an exotic superconductor. Both are highly anisotropic “bad metals”: the resistivity of the conducting planes grows quasi-linearly up to the highest temperatures, while the out-of-plane resistivity at first rises rapidly but then saturates around 100 K. Neither behavior is understood. In recent high pressure measurements we found a puzzling difference between these materials, and we observed a qualitative change in the c-axis resistivity of Sr3Ru2O7 around 5 GPa. In order to understand and then publish this result we are proposing diffraction measurements from 0 to 8 GPa on powder samples of Sr3Ru2O7 to determine the lattice parameters and, especially, to characterize orthorhombic distortions, as a function of pressure.

Principal Investigator: Professor Stephen Julian
Experimenter: Dr Alexandra Gibbs
Experimenter: Miss Lingyun He
Local Contact: Dr Craig Bull
Experimenter: Mr Ben Tragheim

DOI: 10.5286/ISIS.E.RB1900134

ISIS Experiment Number: RB1900134

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:
Professor Stephen Julian et al; (2019): Pressure dependence of the crystal structure of the strongly correlated bilayer ruthenate Sr3Ru2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1900134

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