ISIS Neutron and Muon Source Data Journal

Clarifying the magnetism of two polymorphs of Ca2Os2O7 by muon spin rotation

Abstract: This proposal is part of our project to investigate the unusual physics of 5d transition metal oxides. In particular, we are studying two samples of the chemical composition Ca2Os2O7: One forming the pyrochlore and the other the weberite crystal structure. The key interest in these materials are unusual metal-insulator (possibly Slater or Lifshitz) transitions, concomitant with magnetic ordering. For both samples, we have already performed extensive bulk characterisation and neutron diffraction experiments (and, for the pyrochlore, a preliminary MuSR measurement). However, in both cases, the experimental evidence is ambiguous and we believe that muon spin rotation will yield the desired answers: (1) For the weberite, we want to determine whether the two osmium sites order simultaneously and (2) For the pyrochlore, we want to determine whether any long range order sets in above 40 m

Principal Investigator: Professor Andrew Boothroyd
Experimenter: Professor Marein Rahn
Local Contact: Dr Peter Baker
Experimenter: Dr Andrew Princep
Experimenter: Mr Nathaniel Davies

DOI: 10.5286/ISIS.E.RB1610175

ISIS Experiment Number: RB1610175

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): Clarifying the magnetism of two polymorphs of Ca2Os2O7 by muon spin rotation, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610175

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