RESONANT X-RAY-SCATTERING IN 5F MAGNETISM

Large enhancements of the magnetic cross section of photons occurs whe n the energy is tuned near to an absorption edge. Examples of this eff ect in the actinides at the M(IV) edge are presented. The excellent re solution available with X-ray synchrotron beams has allowed new featur es in both the magnetic structure and the critical regime to be determ ined. The technique is also sensitive to the near-surface region. Some of the possibilities with the new 3rd-generation synchrotrons will be discussed.