ISIS Neutron and Muon Source Data Journal

Magnetic structure below the metal-insulator transition of Pb2CaOsO6

Abstract: This proposal is part of a project in which we explore the unusual physics of 5d transition metal oxides. Using a special high pressure technique, we have synthesised first samples of lead calcium osmate (Pb2CaOsO6). We found that Pb2CaOsO6 undergoes a metal-insulator transition at 80K, which for this material cannot be understood in the usual Mott-Hubbard scenario. It is more likely a rare realisation of a Slater transition, where the electronic ground state is renormalised by magnetic ordering.We have previously performed a Pb2CaOsO6 powder diffraction experiment on WISH. We were able to determine the propagation vector of the antiferromagnetic order, but the dataset did not allow a complete determination of the magnetic structure. To conclude our study, we here propose a magnetic neutron diffraction experiment of our newly synthesised Pb2CaOsO6 single crystal on WISH.

Principal Investigator: Professor Andrew Boothroyd
Experimenter: Dr Andrew Princep
Experimenter: Professor Marein Rahn
Local Contact: Dr Pascal Manuel

DOI: 10.5286/ISIS.E.RB1610176

ISIS Experiment Number: RB1610176

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Professor Andrew Boothroyd et al; (2016): Magnetic structure below the metal-insulator transition of Pb2CaOsO6, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610176

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