Study on the Anomalous Magnetoelectric Effect of Yttrium Iron Garnet by 57Fe NMR
Study on the Anomalous Magnetoelectric Effect of Yttrium Iron Garnet by 57Fe NMR
批准号:
20540332
负责人:
ASAI Kichizo
金额:
$3.0万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010
中文摘要
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英文摘要
The present study aims to elucidate the anomalous magneto-electric effect in yttrium iron garnet(YIG). The Debye-type magnetic and electric relaxations observed below 300 K both arise from Fe2+ accompanied by oxygen vacancies in YIG. It has been found that the charge transfer among 16a sites persists down to 4 K resulting in the valence fluctuation between Fe2+ and Fe3+. A correlation between the magnetic anisotropy and the electric polarization arising from Fe2+ in 16a sites is suggested to be the origin of the anomalous magneto-electric effect in YIG.
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Significant softening of C66 and hiddenorder parameter in the magnetic order edstate of La_<2-x> Ca_xCoO_4(0. 4≦x≦0. 7)
La_<2-x> Ca_xCoO_4(0. 4≤x≤0. 7)磁序ED态中C66显着软化和隐序参数
DOI:
--
发表时间:
2008
期刊:
Phys. Rev
影响因子:
--
作者:
[T. Horigane, T. Kobayashi, M. Suzuki, K. Abe, K. Asai, and J. Akimitsu]
通讯作者:
and J. Akimitsu
Crystal Structure of Six-Layer Ba_<1-x> Sr_xRuO_3
六层Ba_<1-x>Sr_xRuO_3的晶体结构
DOI:
--
发表时间:
2009
期刊:
J. Phys. Soc. Jpn
影响因子:
--
作者:
[Y. Kobayashi, T. Ohishi, T. Kaneko, M. Iwata, and K. Asai]
通讯作者:
and K. Asai
電気通信大学大学院修士学位論文(1)大澤明弘「元素置換したイットリウム鉄ガーネットのNMRによる研究」(2012年3月)
电气通信大学研究生院硕士学位论文(1)大泽明宏“元素取代钇铁石榴石的NMR研究”(2012年3月)
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
DOI:
10.1143/jpsj.81.044708
发表时间:
2012-04-01
期刊:
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
影响因子:
1.7
作者:
[Kobayashi, Yoshihiko, Kamogawa, Masafumi, Asai, Kichizo]
通讯作者:
Asai, Kichizo
イットリウム鉄ガーネットの誘電緩和と磁気緩和の試料依存性
钇铁石榴石介电和磁弛豫的样品依赖性
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[新井伸英, 榎下峻平, 小林義彦, 阿部浩二, 中村仁, 浅井吉蔵]
通讯作者:
浅井吉蔵
共 23 条
Investigation of the Spin-Phase Separation in LaCoO3 by High-field Magnetization
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批准号:24540365
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$3.24万
-
财政年份:2012
-
负责人:ASAI Kichizo
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依托单位:
Magnetoelectric Effects in Ferromagnetic Oxides with the Double Perovskite Structure
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批准号:18540342
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.45万
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财政年份:2006
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负责人:ASAI Kichizo
-
依托单位:
Phonon study by neutron scattering on the orbital-order of the intermediate-spin-state of Co^<3+> and the spin-state transition
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批准号:16540310
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.37万
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财政年份:2004
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负责人:ASAI Kichizo
-
依托单位:
Lattice anomaly associaterd with the magnetic order in a re-entrant superconductor Ho_<1-x>Y_xNi_2B_2C
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批准号:14540331
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.92万
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财政年份:2002
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负责人:ASAI Kichizo
-
依托单位:
Study on Spin-State Transitions in LaCoO_3
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批准号:08640449
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.41万
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财政年份:1996
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负责人:ASAI Kichizo
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依托单位:
海外基金