Giant magneto-optical response of ferromagnetic EuB6
Laboratorium für Festkörperphysik, ETH Zurich, 8093 Zurich, Switzerland
2 NHMFL-FSU, Tallahassee FL 32306, USA
Corresponding author: a firstname.lastname@example.org
Published online: 15 May 2002
EuB6, a ferromagnet with a Curie temperature of K, exhibits very large magnetoresistive effects at temperatures both above and below TC. We present our magneto-optical investigations, including measurements of the reflectivity and Kerr rotation, covering the spectral range from the infrared up to the ultraviolet, as a function of temperature between 1.5 and 20 K and in external magnetic fields from 0 to 10 T. The Kerr rotation at high fields and low temperatures is enormous. The spectra reflect aspects of the large magnetoresistance and are shown to discriminate between the spectroscopic response of localized and itinerant electronic states in the ferromagnetic state.
PACS: 78.20.Ls – Magnetooptical effects / 75.50.Cc – Other ferromagnetic metals and alloys
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002