Current Applied Physics

Korean Physical Society (한국물리학회)
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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)
  • Received : 2018.03.23
  • Accepted : 2018.05.03
  • Published : 2018.11.30
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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

Acknowledgement

Supported by : NRF

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