ISIS Neutron and Muon Source Data Journal

This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.


Coupled magnetic and nematic fluctuations in S-doped FeSe

Abstract: Iron selenide (FeSe) is the simplest of the iron-based superconductors. It has a nematic (tetragonal to orthorhombic) phase transition at T = 90K. Upon doping with sulphur, the nematic transition temperature is suppressed, until at 17% doping it disappears entirely at what has been called a nematic quantum critical point. The questions explored in this proposal are, to what extent are the spin and nematic fluctuations coupled, and what are the implications for superconductivity? We shall measure the spin fluctuation spectrum in the nematic quantum critical system, using a powder sample. This study was started on Mari, but due to an anomalous background signal and detector gaps, the signal could not be measured at low energies.

Principal Investigator: Professor Andrew Boothroyd
Experimenter: Dr Simon Cassidy
Local Contact: Dr Helen Walker
Experimenter: Mr jinzhao sun [Deactivated]
Experimenter: Dr Simon Clarke
Local Contact: Dr Russell Ewings

DOI: 10.5286/ISIS.E.RB2010699

ISIS Experiment Number: RB2010699

Part DOI Instrument Public release date Download Link
10.5286/ISIS.E.RB2010699-1 MERLIN 26 February 2023 Download
10.5286/ISIS.E.RB2010699-2 MERLIN 21 October 2023 Download

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; (2020): Coupled magnetic and nematic fluctuations in S-doped FeSe, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010699

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



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