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Development of Study in Magnetism using 3rd Generation SR

Research Project

Project/Area Number 10045028
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅱ(磁性・金属・低温)
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

YAMAZAKI Hitoshi  Okayama Univ., Fac.of Science, Professor, 理学部, 教授 (40013495)

Co-Investigator(Kenkyū-buntansha) OKADA Kozo  Fac.of Science, OKAYAMA UNIVERSITY, Associate Professor, 理学部, 助教授 (70194355)
HARADA Isao  Fac.of Science, OKAYAMA UNIVERSITY, Professor, 理学部, 教授 (10030785)
MARUYAMA Hiroshi  Fac.of Science, OKAYAMA UNIVERSITY, Associate Professor, 理学部, 助教授 (20181836)
HLILーEL Kebi  グルノーブル大学, 理学部, 助教授
RAOUX Denis  CNRS結晶学研究所, 所長教授
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 2000: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥2,200,000 (Direct Cost: ¥2,200,000)
KeywordsSynchrotron radiation / X-ray magnetic circular dichroism / X-ray resonant magnetic scattering / Spin electronic states / Magnetic phase transition / 希土類化合物磁性体 / 共鳴磁気散乱 / 人工格子多層膜 / 遷移金属化合物 / 希土類化合物 / ハバード模型 / X線吸収分光 / 多重散乱理論 / アンダーソン模型 / 共鳴非弾性X線散乱
Research Abstract

1. Experiments using brilliant light source of 3rd generation SR
Diamond phase plate was applied to fast helicity reversal of the monochromatized X-ray, and the helicity-modulation method was successfully established at SPring-8 BL39XU.Accuracy of X-ray magnetic circular dichroism (XMCD) spectrum has been remarkably improved by this method. In the term of project, we have studied magnetic states in Fe-oxides ferrimagnets, magnetic phase transitions in Mn carbide perovskites, metamagnetism in CeSb, and magnetic states in Ho-iron-garnet at higher temperatures.
2. Collaboration in SR experiment
We have collaborated with each other for SR experiments at ESRF and SPring-8. In October, 1998, resonant magnetic scattering in Ce/Fe and CeLa/Fe multilayers was made at ESRF, and in February, 1999, temperature dependence of XMCD spectrum in Ce/Fe and CeH/Fe multilayers was measured at SPring-8. The intra-layer and inter-layer magnetic structures were discussed on the basis of the observations.
3. Theo … More retical study on spin-electronic states
Theoretical interpretation has been formulated on the L-edges XMCD spectrum of rare-earth (RE) elements in 3d-4f intermetallic compounds. The calculated spectrum well reproduced the experiment by taking into account 4f-5d intra-atomic exchange interaction, shrinkage of 5d wave function, and 3d-5d inter-atomic interaction. Solid-state effect in the various magnetic materials is also discussed from the view point of influence on fine structure in the spectrum. Resonant X-ray emission spectroscopy in Hubbard model was also calculated and electron correlation effect was studied.
4. Development of experimental instruments
A superconducting magnet with 10T maximum was installed on BL39XU in Spring-8, and the XMCD spectrum under high-field and low temperature was successfully recorded. For the condition of high-pressure, a system composed of a diamond-anvil-cell and a He-gas closed cycle refrigerator was designed and fabricated. A simplified furnace was used for the XMCD measurement at high temperatures.
5. Exchange of researchers
Twelve researchers have totally exchanged between Okayama and Grenoble universities in the term of project. The discussions which taken place during the exchange program were very fruitful for the partner in the field of magnetism as well as in the field of development of SR instrumentation. Less

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] K.Fukui 他4名: "Phenomenological interpretation of MCXD in L_<2.3> XAS of trivalent cerium compound"Journal of Electron Spectroscopy and Related Phenomena. 104巻. 67-72 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawamura 他5名: "Multielectron Excitations in 3d Transition Metal Compounds Probed by X-Ray Magnetic Circular Dichroism"Journal of the Physical Society of Japan. 68巻3号. 923-929 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Suzuki 他6名: "Polarization-Modulation Technique with Diamond Phase Retarder to improve the Accuracy of XMCD Measurements"Journal of Synchrotron Radiation. 6巻. 190-192 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Maruyama 他11名: "Polarization Tunability and Analysis for Observing Magnetic Effects on BL39XU at SPring-8"Journal of Synchrotron Radiation. 6巻. 1133-1137 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 圓山裕 他4名: "SPring-8での構造研究-今何ができるか-:X線磁気散乱・吸収実験ステーション(BL39XU)"日本結晶学会誌. 42巻1号. 76-86 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Maruyama: "Study of Magnetic Materials Using Helicity-Modulated X-ray Magnetic Circular Dichrosim"J.Synchrotron Radiation. 8巻(印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Fukui, H.Matsuyama, I.Harada, J.C.Parlebas and A.Kotani: "Phenomenological Interpretation of MCXD in L_<2, 3> XAS of Trivalent Cerium Compounds"J.Electron Spectrosc.Relat.Phenom.. 104. 65-70 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawamura, H.Maruyama, K.Kobayashi, S.Uemura, A.Urata and H.Yamazaki: "Multielectron Excitations in 3d Transition Metal Compounds Probed by X-Ray Magnetic Circular Dichroism"J.Phys.Soc.Jpn.. 68. 923-929 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Suzuki, N.Kawamura, M.Mizumaki, A.Urata, H.Maruyama, S.Goto and T.Ishikawa: "Polarization-Modulation Technique with Diamond Phase Retarder to improve the Accuracy of XMCD Measurements"J.Synchrotron Rad.. 6. 190-192 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Maruyama, M.Suzuki, N.Kawamura, M.Ito, E.Arakawa, J.Kokubun, K.Hirano, K.Horie, S.Uemura, K.Hagiwara, M.Mizumaki, S.Goto, H.Kitamura, K.Namikawa and T.Ishikawa: "Polarization Tunability and Analysis for Observing Magnetic Effects on BL39XU at SPring-8"J.Synchrotron Rad.. 6. 1133-1137 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Jaouen, J.M.Tonnerre, D.Raoux, L.Seve, F.Bartolome, A.Rogalev, M.Muenzenberg, W.Felsch, H.A.Durr, E.Dudzik, and H.Maruyama: "Chemical and Magnetisation Profile Study of Ce in [CeLaCe/Fe] and [LaCeLa/Fe] Multilayers by Resonant X-Ray Reflectivity"Physica B. 283. 175-179 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Maruyama: "Study of Magnetic Materials Using Helicity-Modulated X-ray Magnetic Circular Dichroism"J.Synchrotron Radiation. 8. 125-128 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Renevier, Y.Joly, J.Garcia, G.Subias, M.G.Proietti, J.L.Hodeau and J.Blasco: "Diffraction Anomalous Structure of Forbidden Bragg Reflections : Charge Localization and Structure of the Octahedral Site in Magnetite"J.Synchrotron Radiation. 8. 390-392 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] J.Chaboy 他6名: "X-ray Absorption in Ce(Fe_<1-x>Co_x)_2 and Ce(Fe_<1-x>Al_x)_2 Compouds"Phys.Rev.B. 62巻. 468-475 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] J.Miguel-Soriano 他4名: "X-ray Magnetic Circular Dichroism at the Rare Earth L_<2,3> Edges in R_2Fe_<14>B Intermetallics"J.Appl.Phys.. 87巻. 5884-5886 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 圓山裕 他4名: "SPring-8での構造研究-今何ができるか-:X線磁気散乱・吸収実験ステーション(BL39XU)"日本結晶学会誌. 42巻1号. 76-86 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Maruyama: "Study of Magnetic Materials Using Helicity-Modulated X-ray Magnetic Circular Dichroism"J.Synchrotron Radiation. 8巻(印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.Uemoto 他9名: "Mn K-edge XMCD in Mn_3MC (M=Zn and Ga) Perovskite"J.Synchrotron Radiation. 8巻(印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Fujii 他5名: "XPS analysis of various iron oxide films grown by NO_2-assisted molecular-beam epitaxy"Phys. Rev. B. 59巻4号. 3195-3202 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Fukui 他4名: "Phenomenological interpretation of MCXD in L_<2,3> XAS of trivalent cerium compound"Journal of Electron Spectroscopy and Related Phenomena. 104巻. 67-72 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Kawamura 他5名: "Multielectron Excitations in 3d Transition Metal Compounds Probed by X-Ray Magnetic Circular Dichroism"Journal of the Physical Society of Japan. 68巻3号. 923-929 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Suzuki 他6名: "Polarization-Modulation Technique with Diamond Phase Retarder to improve the Accuracy of XMCD Measurements"Journal of Synchrotron Radiation. 6巻. 190-192 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maruyama 他11名: "Polarization Tunability and Analysis for Observing Magnetic Effects on BL39XU at SPring-8"Journal of Synchrotron Radiation. 6巻. 1133-1137 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Q.Zhang 他3名: "Microwave Radiation of Parametrically Excited Quasiphonons in Antiferromagnet FeBO_3"Journal of the Physical Society of Japan. 69巻1号. 41-44 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maruyama et al.: "Comparison of Pt 5d-magnetic states between thin-film and bulk of M-Pt(M=Mn and Co) compounds by magnetic circular dichroism" J.Electron Spectroscopy and Related Phenomena. 92巻. 35-39 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Suzuki et al.: "Helicity-modulation technique using diffractive phase retarder for measurements of X-ray magnetic circular dichroism" Jpn.J.Appl.Phys.37巻12号. L1488-L1490 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 圓山 裕: "放射光X線による磁性研究 -R_2Fe_<14>B化合物の電子状態-" 日本応用磁気学会誌. 22巻11号. 1369-1376 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Olada and A.Kotani: "Large-cluster effects on core-level photoabsorption spectrum of LaCuO_3" J.Phys.Soc.Jpn.68巻2号. 666-673 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Kawamura et al.: "Multielectron excitations in 3d transition metal compounds probed by X-ray magnetic circular dichroism" J.Phys.Soc.Jpn.68巻(in press). (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2020-05-15  

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