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http://dx.doi.org/10.1016/j.cap.2018.05.006

Circularly polarized soft X-ray generation by Co/Pt thin film polarizer with perpendicular magnetic anisotropy  

Lee, Sang-Hyuk (Department of Physics, Chungbuk National University)
Huang, Lin (Department of Physics, Chungbuk National University)
Lee, Jae-Woong (Department of Materials Science, Chungnam National University)
Kim, Namdong (Pohang Accelerator Laboratory)
Shin, Hyun-Joon (Pohang Accelerator Laboratory)
Jeong, Jong-Ryul (Department of Materials Science, Chungnam National University)
Hwang, Chanyong (Center for Nanometrology, Korea Research Institute of Standards and Science)
Kim, Dong-Hyun (Department of Physics, Chungbuk National University)
Publication Information
Current Applied Physics / v.18, no.11, 2018 , pp. 1196-1200 More about this Journal
Abstract
We have experimentally demonstrated circular polarization generation from linear polarized soft X-ray at synchrotron by adopting a thin magnetic film polarizer. Polarizer is composed of Co/Pt multilayer with a perpendicular magnetic anisotropy, which allows us to easily accommodate without needing any tilting angle into the measurement setup since the circular polarization is generated for the X-ray with normal incidence and transmission. Generated circular polarization is examined by observing magnetic domain features based on the X-ray magnetic circular dichroism, where~11% of circular component is estimated compared to the case of full circular polarization.
Keywords
X-ray polarization; Magnetic film polarizer; Magnetic domain;
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