ISIS Neutron and Muon Source Data Journal

Magnetic excitation spectrum near incipient SDW order in Nb1-xFe2+x

Abstract: Our previous neutron diffraction on C14 Laves phase compounds Nb1-xFe2+x revealed thata spin-density-wave (SDW) is masking an underlying ferromagnetic (FM) quantum critical point (QCP) of the system. With inelastic neutron scattering in a narrow Q range on an Fe-richsample we observed enhanced soft magnetic excitations. We propose to now carry out inelasticneutron scattering with high E resolution in a wide Q range on samples with chemical compositions covering the region in the phase diagram, where FM order is suppressed. This comprehensive data set will allow to discriminate between a magnetic excitation spectrum expected near a FM QCP and one influenced by an emerging SDW order masking the QCP. For this study we request 7 days of beam time on LET.

Principal Investigator: Dr Philipp Niklowitz
Experimenter: Professor Malte Grosche
Experimenter: Mr Marijn Lucas
Local Contact: Dr David Voneshen
Experimenter: Dr Friedrich Malte Grosche
Experimenter: Professor Christian Pfleiderer
Experimenter: Mr Thomas Poulis

DOI: 10.5286/ISIS.E.RB1620482

ISIS Experiment Number: RB1620482

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

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

For Example:
Dr Philipp Niklowitz et al; (2016): Magnetic excitation spectrum near incipient SDW order in Nb1-xFe2+x, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620482