Development of STM combined with synchrotron-radiation light source and its application to elemental analysis and spin observation

STM结合同步辐射光源的研制及其在元素分析和自旋观测中的应用

基本信息

  • 批准号:
    14350016
  • 负责人:
  • 金额:
    $ 9.66万
  • 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:
    2002
  • 资助国家:
    日本
  • 起止时间:
    2002 至 2003
  • 项目状态:
    已结题

项目摘要

We have developed an ultrahigh vacuum (UHV) STM system with which we can take atomically resolved STM images under an Iiradiation of synchrotron radiation light source. In order to do that, we designed an anti-vibration system including a vibration-isolation table which can be fitted in a narrow space of beamline. Since sites of beamlines in synchrotron-radiation light source are usually quite noisy electrically and mechanically, which is completely inappropriate for STM, we needed to consider carefully to avoid the noises to disturb the operation of STM, and successfully took atomically resolved STM images of the Si(111)7x7 surface under the irradiation.We also succeeded in taking adsorption spectra of the sample element by using the probe tip as a detector; it was found that the photoinduced current increases when the irradiated light energy is above 101eV, an adsorption edge of Si 2p, demonstrating a possibility that the STM tip can detect photoelectron emitted from core states of sample. Compared with the previous work done with a X-ray tube, the photoinduced current by the synchrotron is larger by a factor of more than 100. High intensity of the light and tunability of a light energy to that of a high adsorption crosssection are the main reasons for the high detection.After an modificatIon of the measurement system, we could also measure the photoinduced current quantitatively. From the quantitative measurement we characterized a spatial resolution of this elemental detection method by using a sample with a mixture of Au-induced 5x2 and Si7x7 surfaces and a Si substrate on which 2-micron size aluminum dots are regularly arranged. We also developed a method to focus the detection area on the tip for improving the spatial resolution by coating the tip with an insulating polymer and found successfully working.
我们研制了一套超高真空STM系统,在同步辐射光源的照射下,可以获得原子级分辨的STM图像。为此,我们设计了一种抗振系统,包括一个隔振台,它可以安装在一个狭窄的空间光束线。由于同步辐射光源中光束线的位置通常具有很强的电噪声和机械噪声,这对于STM来说是完全不合适的,因此需要仔细考虑以避免噪声干扰STM的运行,并成功地拍摄了Si(111)的原子分辨STM图像,7 × 7表面进行了辐照,并成功地用探针针尖作探测器拍摄了样品元素的吸收光谱;发现当辐照光能量超过Si 2 p的吸附边101 eV时,光生电流增加,说明STM针尖可以探测到样品芯态发射的光电子。与以前用X射线管所做的工作相比,同步加速器的光生电流大100倍以上。高光强和光能量对高吸收截面的可调谐性是高探测率的主要原因,通过对测量系统的改进,我们还可以定量地测量光生电流。从定量测量中,我们通过使用具有Au诱导的5x 2和Si 7 x7表面的混合物的样品和在其上规则地排列2微米尺寸的铝点的Si衬底来表征该元素检测方法的空间分辨率。我们还开发了一种方法,通过用绝缘聚合物涂覆尖端来将检测区域聚焦在尖端上以提高空间分辨率,并成功地工作。

项目成果

期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Matsushima et al.: "Development and trial measurement of synchrotron-radiation-light-illuminated scanning-tunneling-microscope"Review of Scientific Instruments. (in press). 75 (2004)
T.Matsushima 等:“同步辐射光照明扫描隧道显微镜的开发和试验测量”科学仪器评论。
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    0
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  • 通讯作者:
T.Matsushima et al.: "Development and trial measurement of synchrotron-radiation-light- illuminated scanning-tunneling-microscope"Review of Scientific Instruments. 75,6月号(印刷中). (2004)
T. Matsushima 等人:“同步辐射光照明扫描隧道显微镜的开发和试验测量”科学仪器评论 75,6 月号(2004 年出版)。
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    0
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T.Matsushima: "Development and trial measurement of synchrotron-radiation- light-illuminated scanning-tunneling-microscope"Review of Scientific Instruments. 75,5月号(掲載予定). (2004)
T.Matsushima:“同步辐射光照明扫描隧道显微镜的开发和试验测量”科学仪器评论 75,5 月号(待出版)。
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HASEGAWA Yukio其他文献

金属ナノ粒子の光機能とサイズ依存性
金属纳米颗粒的光学功能和尺寸依赖性
  • DOI:
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Sumiyoshi Akinobu;Chiba Yusuke;Matsuoka Ryota;Noda Takumu;Nabeshima Tatsuya;HASEGAWA Yukio;立間 徹
  • 通讯作者:
    立間 徹
高V含有量なKeggin型W-Vヘテロポリ酸の合成とその解析
高V含量Keggin型W-V杂多酸的合成与分析
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    HAZE Masahiro;YOSHIDA Yasuo;HASEGAWA Yukio;川村 美紗希・石川 理史・定金 正洋・上田 渉
  • 通讯作者:
    川村 美紗希・石川 理史・定金 正洋・上田 渉
Future in Research Explored by Probe Microscopy
探针显微镜探索研究的未来
  • DOI:
    10.1380/vss.61.609
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    青木千佳;石田拓也;立間 徹;HASEGAWA Yukio
  • 通讯作者:
    HASEGAWA Yukio
Scanning Tunneling Microscopy Data Analysis Using Sparse Modeling
使用稀疏建模进行扫描隧道显微镜数据分析
  • DOI:
    10.1380/vss.65.78
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    HAZE Masahiro;YOSHIDA Yasuo;HASEGAWA Yukio
  • 通讯作者:
    HASEGAWA Yukio
Purpose of SPM Special Issue ; “Frontier in Nano Science by Scanning Probe Microscopy”
SPM 特刊的目的;“扫描探针显微镜的纳米科学前沿”
  • DOI:
    10.1380/vss.61.630
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Sumiyoshi Akinobu;Chiba Yusuke;Matsuoka Ryota;Noda Takumu;Nabeshima Tatsuya;HASEGAWA Yukio
  • 通讯作者:
    HASEGAWA Yukio

HASEGAWA Yukio的其他文献

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{{ truncateString('HASEGAWA Yukio', 18)}}的其他基金

Scanning tunneling microscopy on proximity effects at superconductor/ferromagnetic interfaces
扫描隧道显微镜研究超导/铁磁界面的邻近效应
  • 批准号:
    25286055
  • 财政年份:
    2013
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Real-space observation of vortices and proximity effects on nano-size superconductors
纳米超导体涡旋和邻近效应的实空间观测
  • 批准号:
    21360018
  • 财政年份:
    2009
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Precise measurements of electrostatic potential using scanning probe microscopy
使用扫描探针显微镜精确测量静电势
  • 批准号:
    19310065
  • 财政年份:
    2007
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
visualization of Fermi level pinning sites at metal semiconductor interfaces
金属半导体界面费米能级钉扎位点的可视化
  • 批准号:
    13555088
  • 财政年份:
    2001
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
nano-scale real-space observation of surface two-dimensional electron system under ultra-low temperature and magnetic field
超低温磁场下表面二维电子系统纳米级实空间观测
  • 批准号:
    12450020
  • 财政年份:
    2000
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

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分子、团簇和吸附物高分辨率核心能级激发的实验和理论研究
  • 批准号:
    5351793
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    Research Grants
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    9526268
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    1995
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    $ 9.66万
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    Continuing Grant
Core Level Excitation and Relaxation in Molecules
分子的核心水平激发和弛豫
  • 批准号:
    8921729
  • 财政年份:
    1990
  • 资助金额:
    $ 9.66万
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    Continuing Grant
Core Level Excitation and Relaxation in Molecules
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  • 批准号:
    8703340
  • 财政年份:
    1987
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    $ 9.66万
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    Continuing Grant
Core Level Excitation and Relaxation in Polyatomic Molecules(Chemistry)
多原子分子的核心水平激发和弛豫(化学)
  • 批准号:
    8215061
  • 财政年份:
    1983
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Continuing Grant
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