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High Energy Resolution Magnetic Circular Dichroism Measurement Of The Ferrite Family

Author

Listed:
  • AKANE AGUI

    (Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148, Japan)

  • YUJI SAITOH

    (Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148, Japan)

  • AKITAKA YOSHIGOE

    (Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148, Japan)

  • TAKESHI NAKATANI

    (Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148, Japan)

  • TOMOHIRO MATSUSHITA

    (Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan)

  • MASAICHIRO MIZUMAKI

    (Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan)

Abstract

Magnetic circular dichroism (MCD) spectra of spinel ferritesMFe2O4(M = Co, Mn, Fe, Co and Ni) have been measured by using a photon-helicity-switching method. The method achieves high energy resolution and a low noise-to-signal ratio. The FeL2,3absorption spectra ofMFe2O4show a similar spectral profile; on the other hand, the MCD spectra show the characteristic fine structures. These differences are attributed to the variety of3delectron configuration of Fe ions (Fe2+orFe3+) and the local symmetry (tetrahedral or octahedral). The origin of the positive peak ofMFe2O4(M = Fe, Co and Ni) MCD spectra at theL3edge is attributed to the tetrahedralFe3+(3d5)state.

Suggested Citation

  • Akane Agui & Yuji Saitoh & Akitaka Yoshigoe & Takeshi Nakatani & Tomohiro Matsushita & Masaichiro Mizumaki, 2002. "High Energy Resolution Magnetic Circular Dichroism Measurement Of The Ferrite Family," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 843-848.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02003032
    DOI: 10.1142/S0218625X02003032
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