Realization of a scanning soft X‐ray microscope for magnetic imaging under high magnetic fields. (2nd August 2018)

• Record Type: Journal Article
• Authors: Kotani, Yoshinori; Senba, Yasunori; Toyoki, Kentaro; Billington, David; Okazaki, Hiroyuki; Yasui, Akira; Ueno, Wakana; Ohashi, Haruhiko; Hirosawa, Satoshi; Shiratsuchi, Yu; Nakamura, Tetsuya
• Is Part Of: Journal of synchrotron radiation. Volume 25:Part 5(2018)
• Page Start: 1444
• Page End: 1449
• Publication Date: 2018-08-02
• Subjects: X‐ray microscopy -- magnetic domains -- X‐ray magnetic circular dichroism -- Nd–Fe–B; Synchrotron radiation -- Periodicals; Free electron lasers -- Periodicals; 539.73505
• DOI: 10.1107/S1600577518009177
• Languages: English
• ISSNs: 0909-0495

Abstract

Abstract : A scanning soft X‐ray microscope for magnetic imaging using an 8 T superconducting magnet, installed at BL25SU, SPring‐8, is described. With the instrument the magnetic domain structure of an Nd–Fe–B sintered magnet is demonstrated. Abstract : For the purpose of imaging element‐ and shell‐specific magnetic distributions under high magnetic fields, a scanning soft X‐ray microscope has been developed at beamline BL25SU, SPring‐8, Japan. The scanning X‐ray microscope utilizes total electron yield detection of absorbed circularly polarized soft X‐rays in order to observe magnetic domains through the X‐ray magnetic circular dichroism effect. Crucially, this system is equipped with an 8 T superconducting magnet. The performance and features of the present system are demonstrated by magnetic domain observations of the fractured surface of a Nd14.0 Fe79.7 Cu0.1 B6.2 sintered magnet.