ISIS Neutron and Muon Source Data Journal

The Effect of Pressure on the Low Temperature Magnetic Structure of the CMR Material NdMnAsO0.95F0.05

Abstract: Colossal magnetoresistance (CMR) is observed in the oxypnictide NdMnAsO1-xFx (x = 0 - 0.085) at low temperature. The CMR in NdMnAsO1-xFx arises due to competition between a strongly correlated antiferromagnetic insulating phase and a paramagnetic semiconductor with field. Another way to induce transitions between competing phases is to apply external pressure. Preliminary variable pressure data show a notable change in the temperature variation of the resistivity of NdMnAsO0.95F0.05 upon applying a pressure of up to 2.56 GPa. Given that the electronic and magnetic properties of NdMnAsO0.95F0.05 are strongly coupled it is highly likely that this change in resistivity is a result of a change in magnetic structure upon applying pressure. We aim to investigate the magnetic structure of NdMnAsO0.95F0.05 at temperatures between 20 K and 60 K in pressures up to 6 GPa.

Principal Investigator: Professor Abbie McLaughlin
Experimenter: Dr Eve Wildman
Local Contact: Dr Pascal Manuel

DOI: 10.5286/ISIS.E.RB1510130

ISIS Experiment Number: RB1510130

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 Abbie McLaughlin et al; (2016): The Effect of Pressure on the Low Temperature Magnetic Structure of the CMR Material NdMnAsO0.95F0.05, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510130

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