Development of fast scanning soft X-ray microscopy for investigating the magnetic state

2014 Fiscal Year Final Research Report

• Project/Area Number: 25790094
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: Japan Synchrotron Radiation Research Institute
• Principal Investigator: KOTANI Yoshinori 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 技師 (10596464)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 軟X線顕微鏡 / ナノ集光 / 画像信号処理 / X線吸収分光

Outline of Final Research Achievements

We have developed a scanning soft X-ray microscope for study of element-specific and local magnetic state. Fresnel zone plate optics is used to focus a circular polarized beam into a φ100 nm beam spot. Using the focused beam, soft X-ray absorption contrast and X-ray circular dichroism imaging could be performed.
Additionally, we have reduced total measurement time. Magnetic domains of fractured permanent magnet surfaces could be clearly observed.

Free Research Field

量子ビーム科学