Abstract
We present experimental evidence for small-moment magnetism below the ferromagnetic transition temperature in the quasi-one-dimensional metal . Further, we identify rearrangement of the local magnetic moment distribution, which leaves the bulk magnetization unchanged, at the Mott-like transition . These results are only possible via muon-spin relaxation techniques, since neutron scattering studies are hindered by the large absorption of neutrons by Ir. The low-temperature characteristics of this compound, as revealed by , are unconventional, and suggest that its magnetic properties are driven by changes occurring at the Fermi surface due to the formation of a charge-density wave state.
- Received 6 April 2005
DOI:https://doi.org/10.1103/PhysRevB.71.220411
©2005 American Physical Society