Abstract
Publisher Summary This chapter discusses x-ray scattering of lanthanide magnetism. The chapter discusses X-ray scattering cross-section, including both resonant and non-resonant cross-sections. The polarization dependence of the X-ray magnetic cross-section is developed, and work through an example of the calculation of the scattering expected from a helix, as found in some of the heavy lanthanides, and discuss the principles behind the separation of spin and orbital contributions to the total moment. The results of X-ray scattering studies of the lanthanide metal Ho is described, while results from the rest of the lanthanide metals are considered. The chapter discusses random alloys, selected compounds, and artificial structures, including superlattices and thin films, with examples chosen to exemplify the benefits of X-ray magnetic scattering. X-ray studies of the lanthanides in particular have produced a great wealth of information. This includes, on the one hand, a deeper insight into the specific magnetic properties of these elements, while on the other; it has allowed general principles of the X-ray scattering cross-section to be both explored and developed. On the theoretical front the salient features of the non-resonant and the resonant cross-sections are now well understood.
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