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

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 a...

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Bibliographic Details
Published inCurrent applied physics Vol. 18; no. 11; pp. 1196 - 1200
Main Authors Lee, Sang-Hyuk, Huang, Lin, Lee, Jae-Woong, Kim, Namdong, Shin, Hyun-Joon, Jeong, Jong-Ryul, Hwang, Chanyong, Kim, Dong-Hyun
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2018
한국물리학회
Subjects
Magnetic domain
Magnetic film polarizer
X-ray polarization
물리학
X-ray polarization
Magnetic film polarizer
Magnetic domain
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ISSN1567-1739
1878-1675
DOI10.1016/j.cap.2018.05.006

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Summary: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.
ISSN:1567-1739
1878-1675
DOI:10.1016/j.cap.2018.05.006