A compact permanent-magnet system for measuring magnetic circular dichroism in resonant inelastic soft X-ray scattering

A compact and portable magnet system for measuring magnetic dichroism in resonant inelastic soft X-ray scattering (SX-RIXS) has been developed at the beamline BL07LSU in SPring-8. A magnetic circuit composed of Nd – Fe – B permanent magnets, which realised ∼ 0.25   T at the center of an 11   mm gap, was rotatable around the axis perpendicular to the X-ray scattering plane. Using the system, a SX-RIXS spectrum was obtained under the application of the magnetic field at an angle parallel, nearly 45 ° or perpendicular to the incident X-rays. A dedicated sample stage was also designed to be as compact as possible, making it possible to perform SX-RIXS measurements at arbitrary incident angles by rotating the sample stage in the gap between the magnetic poles. This system enables facile studies of magnetic dichroism in SX-RIXS for various experimental geometries of the sample and the magnetic field. A brief demonstration of the application is presented.
Source: Journal of Synchrotron Radiation - Category: Physics Authors: Tags: soft X-ray RIXS magnetic circular dichroism Nd – Fe B permanent magnet sample transfer system research papers Source Type: research
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