X-ray Magnetic Absorption and Scattering (XAFS)

1.Introduction In 3rd generation synchrotron radiation (SR), one of the most promising items may be control and characterization of polarization state. In particular, they are a crucial factor to study magnetic properties using the various techniques inscattering, absorption, diffraction and emission experiments. Indeed, low emittance SR such as Spring-8 can efficiently realize this performance, and for this reason a combination of linear undulator and phaseretarder was decided on the design of beamline 39XU. Experimental test of instruments for Xray magnetic absorption and scattering (XMAS) has successfully demonstrated that the apparatus has the feasibility for studying magnetism. In this report we present the results of X-ray resonance magnetic scattering X-ray magnetic circulardichroism,X-ray magnetic dillraction, and ATS scattering, in which the phase retarder played an essential role for the control of both linear and circular polarization states. Finally, we view some studies to be extended on the beamline in near future.