Study of frustration and the anomalous Hall effect in Fe3Sn2

DOI

We have found unusual and promising Hall effect behaviour in the alloy Fe3Sn2 at 300K. Fe3Sn2 is predominantly ferromagnetic, however, our neutron diffraction data indicate that the Fe moments are actually non-collinear. Our recent dc-SQUID measurements show that there is a magnetic transition at around 125K, which is distinct from the ferromagnetic transition at 657K, indicating that there are different energy scales to the interactions. We believe that the atypical Hall behaviour could be the result of frustration and non-collinearity of the Fe moments, and that the different energy scales may play a definitive role in the anomalous electronic properties. The aim of the current proposal is to survey the magnetic excitation spectra of Fe3Sn2, with incident energies of 120meV and 30meV, at 4 temperatures: 2K, 300K, and just above and below the transition at 125K.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24078838
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24078838
Provenance
Creator Dr Toby Perring; Professor Andrew Wills; Miss Laura Fenner
Publisher ISIS Neutron and Muon Source
Publication Year 2012
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2009-11-29T10:35:12Z
Temporal Coverage End 2009-12-04T11:24:06Z