High frequency spin-fluctuations is single crystal beta-Mn(Co)


beta-Mn metal is a good example of metal close to a magnetic/non-magnetic instability. It doesn't order magnetically at any temperature, and yet has a large Somerfeld constant, and NMR relaxation properties consistent with large amplitude magnetic fluctuations. Our previous neutron scattering investigations of powder samples revealed that the spin-fluctuations in pure beta-Mn exhibit strong non-lorenztian relaxation properties and non-Fermi-liquid scaling with temperature. However, it is possible that in a powder, this apparent behaviour is an artefact caused by a powder average over a range of linewidths. We now have a large (2 cm^3) single crystal of Mn, stabilised in the beta-phase with 25at% Co, which we wish to use the MERLIN spectrometer in order to characterise both the shape and the Q-dependence of the high-frequency spin-dynamics of this fascinating element.

DOI https://doi.org/10.5286/ISIS.E.24081512
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24081512
Creator Dr Rob Bewley; Dr Ross Stewart; Professor Brian Rainford
Publisher ISIS Neutron and Muon Source
Publication Year 2016
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2013-03-21T09:34:15Z
Temporal Coverage End 2013-03-21T15:14:35Z