Magnetic X-Ray Scattering

Abstract

It was proposed in the 1950's that X-rays could be used to probe magnetization densities. After some experimental demonstrations of the technique, applications have shown that tle use of magnetic X-ray scattering c o m -b i n e d w i t h s y n c h r o t r o n r a d i a t i o n c a n l e a d t o i m p o r t a n t n e w d i s c o v e r i e s i n the magnetism of solid materials. Several important features have emerged, especially the resonant magnetic X-ray scattering: large enhancements of scattered intensities, site and species selectivity, X-ray energy and polarization dependence. These properties make it possible to study new phenomena: details of magnetic structures of materials including micro-crystals, new aspects of magnetic plase transitions and surface magnetism.

The Experimentalist's Guide to the Cycloid, or Noncollinear Antiferromagnetism in Epitaxial BiFeO3

“…The full details, including the scattering cross sections and relevant derivations, can be found in comprehensive references on the topic. [ 182–184 ]…”

“…In addition, the large enhancements of magnetic intensity of up to 7 orders of magnitude observed at certain absorption edges makes X‐ray magnetic scattering a powerful approach for probing magnetism. [ 183 ] Both nonresonant X‐ray magnetic scattering (NXMS) and resonant elastic X‐ray scattering (REXS) have been used to probe the cycloid in BFO. In the next section we consider the first of these.…”