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.
High-energy magnetic excitations in FeSe
Abstract: FeSe (Tc = 9 K) being structurally the simplest iron based superconductor shows some exotic properties. For instance, it only undergoes a tetragonal-to-orthorhombic structural transition at Ts = 90 K while no long range magnetic order develops down to the lowest measured temperature leaving the spin fluctuations mediated paring mechanism in doubt. Our recent inelastic neutron scattering experiment have revealed the presence of strong magnetic fluctuations in this system as well. Moreover, we have observed a strong coupling between spin fluctuations and nematicity. Here we propose to use MERLIN to map out the high energy spin excitations to determine the exchange couplings across Ts and we expect a modification of the magnetic exchange couplings below Ts, as suggested theoretically.
Principal Investigator: Mr Jun Zhao
Local Contact: Dr Devashi Adroja
Experimenter: Professor Qisi Wang
Experimenter: Mr Shoudong Shen
DOI: 10.5286/ISIS.E.RB1520096
ISIS Experiment Number: RB1520096
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.63526666 | MERLIN | 03 October 2018 | Download |
| 10.5286/ISIS.E.63526695 | ALF | 28 September 2018 | 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:
Mr Jun Zhao et al; (2015): High-energy magnetic excitations in FeSe, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520096
Data is released under the CC-BY-4.0 license.
