Ferromagnets ain't ferromagnets: polarized neutron scattering and the search for non-collinear ferromagnetism
4-5 p.m., Thursday, 3 November, 2005 .
School of Physics
techniques capable of measuring non-collinear ferromagnetism are few,
however. Of these, the only technique capable of measuring spatial correlations
between the non-collinear components is neutron scattering with polarization
analysis. Since the late 1980s, a collaboration between the universities
of Oxford and Sheffield and the Institute Laue-Langevin has focused
on using this technique to search for non-collinear ferromagnetism in
a range of systems, predominantly iron-based metallic glasses. This
presentation will summarise the major findings of the collaboration
to date, and, while premature, will attempt to put forward the beginnings
of a global picture.