title: A compact permanent-magnet system for measuring magnetic circular dichroism in resonant inelastic soft X-ray scattering.
abstract: 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.
authors.affiliation: The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Miyawaki
authors.affiliation: Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
authors.forename: Shigemasa
authors.initials: S
authors.lastname: Suga
authors.affiliation: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
authors.forename: Hidenori
authors.initials: H
authors.lastname: Fujiwara
authors.affiliation: The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.
authors.forename: Hideharu
authors.initials: H
authors.lastname: Niwa
authors.affiliation: Department of Applied Chemistry, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
authors.forename: Hisao
authors.initials: H
authors.lastname: Kiuchi
authors.affiliation: The Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Harada
keywords: Nd–Fe–B permanent magnet; magnetic circular dichroism; sample transfer system; soft X-ray RIXS