Development of Study in Magnetism using 3rd Generation SR

使用第三代 SR 进行磁学研究的进展

基本信息

  • 批准号:
    10045028
  • 负责人:
  • 金额:
    $ 3.84万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
  • 财政年份:
    1998
  • 资助国家:
    日本
  • 起止时间:
    1998 至 2000
  • 项目状态:
    已结题

项目摘要

1. Experiments using brilliant light source of 3rd generation SRDiamond 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 experimentWe 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 statesTheoretical 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 instrumentsA 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 researchersTwelve 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
1.利用第三代SRDamond相位板的明亮光源进行单色化X射线螺旋度快速反转实验,在SPring-8 BL 39 XU上成功建立了螺旋度调制方法,显著提高了X射线磁圆二色谱(XMCD)谱的准确度。在项目期间,我们研究了铁氧化物亚铁磁体的磁态、锰碳化物钙钛矿的磁相变、CeSb的变磁性以及Ho铁石榴石的高温磁态. SR实验中的合作我们在ESRF和SPring-8的SR实验中相互合作。1998年10月在ESRF上进行了Ce/Fe和CeLa/Fe多层膜的共振磁散射实验,1999年2月在SPring-8上进行了Ce/Fe和CeH/Fe多层膜的XMCD谱的温度依赖性实验。在此基础上讨论了层内和层间的磁结构.西奥 ...更多信息 自旋电子态的理论研究本文对3d-4f金属间化合物中稀土元素的L边XMCD谱进行了理论解释。考虑了4f-5d原子间交换作用、5d波函数收缩和3d-5d原子间相互作用,计算的光谱与实验结果吻合较好。本文还从对光谱精细结构的影响的角度讨论了各种磁性材料中的固态效应。计算了Hubbard模型下的共振X射线发射谱,研究了电子关联效应.实验仪器的研制在8年春,在BL 39 XU上安装了最大10 T的超导磁体,成功地记录了高场低温下的XMCD谱。针对高压条件,设计并制作了一套由金刚石对顶砧和氦气闭式循环制冷机组成的系统。在高温下使用简化炉进行XMCD测量.研究人员的交流在项目期间,冈山和格勒诺布尔大学共有12名研究人员进行交流。在交流项目期间进行的讨论对于磁性领域以及SR仪器开发领域的合作伙伴来说非常富有成效。少

项目成果

期刊论文数量(58)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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)
Q. 张和其他 3 人:“反铁磁体 FeBO_3 中参量激发准声子的微波辐射”,日本物理学会杂志,第 69 卷,第 1. 41-44 期(2000 年)。
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    0
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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)
M.Suzuki 等人:“使用衍射相位延迟器测量 X 射线磁圆二色性的螺旋度调制技术”Jpn.J.Appl.Phys.37,No.12(1998)。
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    0
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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)
Yutaka Maruyama:“使用同步辐射X射线的磁学研究-R_2Fe_ 14 B化合物的电子状态-”日本应用磁学学会杂志第22卷,第11期。1369-1376(1998)
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    0
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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)
M. Suzuki 和其他 6 人:“利用金刚石相位延迟器提高 XMCD 测量精度的偏振调制技术”,同步辐射杂志,第 6 卷,190-192 (1999)。
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    0
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H.Maruyama: "Study of Magnetic Materials Using Helicity-Modulated X-ray Magnetic Circular Dichrosim"J.Synchrotron Radiation. 8巻(印刷中). (2001)
H. Maruyama:“使用螺旋度调制 X 射线磁圆二色性研究磁性材料”J. Synchrotron Radiation 第 8 卷(出版中)。
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YAMAZAKI Hitoshi其他文献

YAMAZAKI Hitoshi的其他文献

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{{ truncateString('YAMAZAKI Hitoshi', 18)}}的其他基金

Investigate of molecular pathology for the malignant associate Retinopathy and clinical application
恶性相关性视网膜病变的分子病理学研究及临床应用
  • 批准号:
    19791253
  • 财政年份:
    2007
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Molecular cloning of the genes related to the early stage of the peripheral type of lung adenocarcinomas
周围型肺腺癌早期相关基因的分子克隆
  • 批准号:
    12670215
  • 财政年份:
    2000
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Microwave Radiation from YIG Magnons
YIG 磁振子的微波辐射
  • 批准号:
    09640435
  • 财政年份:
    1997
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Condensed States of Nonequlibrium Magnons in Ferromagnets
铁磁体中非平衡磁振子的凝聚态
  • 批准号:
    08454098
  • 财政年份:
    1996
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Chaos and Multi-Fractal in Nonlinear Spin Dynamics
非线性自旋动力学中的混沌和多重分形
  • 批准号:
    02402009
  • 财政年份:
    1990
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
Chaos in Magnetic Crystals
磁性晶体中的混沌
  • 批准号:
    60460033
  • 财政年份:
    1985
  • 资助金额:
    $ 3.84万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

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激光驱动圆偏振飞秒软X射线脉冲在时间分辨X射线磁圆二色性测量中的应用
  • 批准号:
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时间分辨X射线磁圆二色性测量研究薄膜光感磁反转
  • 批准号:
    17K14334
  • 财政年份:
    2017
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通过角度相关的 X 射线磁圆二色性研究磁性薄膜和多层膜中的磁各向异性和电子轨道
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  • 财政年份:
    2015
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利用40T高磁场软X射线磁圆二色性显微研究磁电效应
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通过自旋偏振光电子发射显微镜 (Fs-PEEM) 和 fs X 射线磁圆二色性 (Fs-XMCD) 探测纳米结构的 Fs 磁化动力学
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