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Optical control of local ferroelectric polarity

Optical control of local ferroelectric polarity
局部铁电极性的光学控制
批准号:
23656219
负责人:
TONOUCHI Masayoshi
金额:
$2.66万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Challenging Exploratory Research
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 --

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中文摘要
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英文摘要
We studied the temperature dependence of the dielectric dispersion of SrTiO3 thin films on MgAl2O4 by broadband THz-TDS and we found evidence of a ferroelectric phase transition at around 170 K. Furthermore, the increase ofε" in the gigahertz frequency region and the increase ofγTO1 below T_c imply the existence of polar nanoregions that have been observed in other ferroelectric materials with a perovskite structure and relaxor ferroelectrics.
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Strain-Induced Ferroelectricity of a SrTiO_3 Thin Film on a MgAl_2O_4 Su bstrate Observed by Terahertz Time-Domain Spectroscopy
太赫兹时域光谱观测 MgAl_2O_4 基底上 SrTiO_3 薄膜的应变感应铁电性
DOI: 10.1007/s10762-011-9839-9
发表时间: 2012
期刊: JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
影响因子: 2.9
作者: [M. Yamamoto, K. Kimura, Y. Harada, and T. Kita, 堀陽平・柳井武志・中野正基・福永博俊, 松浦祐司, 金城隆平]
通讯作者: 金城隆平
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [R. Kinjo, I. Kawayama, H. Murakami, M. Tonouchi]
通讯作者: M. Tonouchi
DOI: 10.1103/physrevlett.108.097401
发表时间: 2012-02-28
期刊: PHYSICAL REVIEW LETTERS
影响因子: 8.6
作者: [Katayama, I., Aoki, H., Tanaka, K.]
通讯作者: Tanaka, K.
Strain induced conductivity change of SrRuO_3 thin films observed by terahertz time-domain spectroscopy
太赫兹时域光谱观测SrRuO_3薄膜应变引起的电导率变化
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [M. Yamamoto, K. Kimura, Y. Harada, and T. Kita, 池田時浩, 藤原康文, 横井佑司・柳井武志・中野正基・福永博俊, 金城隆平]
通讯作者: 金城隆平
7
    Construction of Optical-Terahertz Function in Strong Correlated Materials
    • 批准号:
      22246043
    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $31.7万
    • 财政年份:
      2010
    • 负责人:
      TONOUCHI Masayoshi
    • 依托单位:
    Development of a high-resolution laser-THz-emission-microscope
    • 批准号:
      19360161
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $12.06万
    • 财政年份:
      2007
    • 负责人:
      TONOUCHI Masayoshi
    • 依托单位:
    Development of laser terahertz emission microscope and its application to LSI defect analysis
    • 批准号:
      16206036
    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $32.36万
    • 财政年份:
      2004
    • 负责人:
      TONOUCHI Masayoshi
    • 依托单位:
    DEVELOPMENT OF TUNABLE LOCAL OSCILLATOER OF THZWAVE BY PHOTOMIXING EXCITATION
    • 批准号:
      13555107
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $3.9万
    • 财政年份:
      2001
    • 负责人:
      TONOUCHI Masayoshi
    • 依托单位:
    海外基金