Laser Study of interactions of atoms and molecules with high-T_C superconductor surfaces

原子和分子与高温超导表面相互作用的激光研究

基本信息

  • 批准号:
    05452070
  • 负责人:
  • 金额:
    $ 4.03万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
  • 财政年份:
    1993
  • 资助国家:
    日本
  • 起止时间:
    1993 至 1994
  • 项目状态:
    已结题

项目摘要

The purpose of this research is to elucidate the interaction of atoms and molecules with the surfaces of high-T_C superconductors. The non-equilibrium nature of the pulsed molecular beam employed in this study has already been investigated [H.Kuze et al., Chem.Phys.Lett.195,400 (1992) ] : the rotational temperature as low as 2 K has been detected by means of laser-induced-fluorescence technique. It has turned out that the use of Nd : YAG laser in place of the original XeCl excimer laser greatly contributes to reduce the discharge noise. The energy losses of magnetic dipoles which pass through a hollow cylinder of high-T_C superconductors have been demonstrated experimentally [H.Kuze et al.J.Appl.Phys.73,1320(1993) ] : the losses are categorized into the hysteresis loss and the eddy-current loss. The detailed magnetic behavior of the YBa_2Cu_3O_x samples, either sintered or melt-textured, is investigated using a relatively simple setup based on a pair of Helmholtz coils. The observed behavior is well explained with a newly propsed model in which the granular superconductors are treated as assembly of superconducting grains.This picture has also been applied successfully to the case where a magnetic dipole is made to move laterally above the surface of the superconductor [H.Kuze et al., J.Appl.Phys.77,770 (1995) ].
本研究的目的是阐明原子和分子与高温超导体表面的相互作用。已经研究了本研究中采用的脉冲分子束的非平衡性质[H.Kuze等人,Chem.Phys.Lett.195(1992)]:用激光诱导荧光技术测得了低至2K的转动温度。结果表明,用Nd:YAG激光器代替原XeCl准分子激光器,大大降低了放电噪声。磁偶极子穿过高T_C超导体空心圆柱体的能量损失已在实验上得到证实[H.Kuze等,J.Appl.Phys.73,1320(1993)]:损失可分为磁滞损失和涡流损失。采用一对亥姆霍兹线圈,在一个相对简单的装置上研究了烧结和熔融织构的YBa_2Cu_3O_x样品的详细磁行为。用一个新提出的模型很好地解释了所观察到的行为,在这个模型中,颗粒超导体被看作是超导颗粒的集合体。这个图象也被成功地应用于使磁偶极子在超导体表面上方横向运动的情况[H.Kuze et al.,J.Appl.Phys.77,770(1995)]。

项目成果

期刊论文数量(16)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
H.Kuze: "Construction and operation of a tunable,pulsed uv laser system" Reports of Faculty of Liberal Arts,Shizuoka. 29. 5-16 (1994)
H.Kuze:“可调谐脉冲紫外激光系统的构建和运行”静冈文学院的报告。
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    0
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H.Kuze,M.Tachikawa and A.Onae: "Deceleration of magnetic dipoles interacting with YBa_2Cu_3O superconductors" Journal of Applied Physics. 73(3). 1320-1326 (1993)
H.Kuze、M.Tachikawa 和 A.Onae:“磁偶极子与 YBa_2Cu_3O 超导体相互作用的减速”应用物理学杂志。
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    0
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H.Kuze and A.Onae: "Measurement and analysis of lateral forces between magnets and high-TC superconductors" Journal of Applied Physics. 77. 770-778 (1995)
H.Kuze 和 A.Onae:“磁体和高温超导体之间横向力的测量和分析”应用物理学杂志。
  • DOI:
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    0
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  • 通讯作者:
H.Kuze: "Construction and operation of a tunable, pulsed uv laser system" Reports of Faculty of Liberal Arts, Shizuoka University. 29. 5-16 (1994)
H.Kuze:“可调谐脉冲紫外激光系统的构建和操作”静冈大学文学院报告。
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    0
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H.Kuze and A.Onae: "Measurement and analysis of lateral forces between magnets and high-T_C superconductors" Jounal of Applied Physics. 77. 770-778 (1995)
H.Kuze 和 A.Onae:“磁体与高温超导体之间横向力的测量和分析”应用物理学杂志。
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KUZE Hiroaki其他文献

KUZE Hiroaki的其他文献

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{{ truncateString('KUZE Hiroaki', 18)}}的其他基金

Comprehensive remote sensing of aerosols and clouds in urban atmospheric boundary layer
城市大气边界层气溶胶和云综合遥感
  • 批准号:
    21510006
  • 财政年份:
    2009
  • 资助金额:
    $ 4.03万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Real-time, wide field-of-view monitoring of the atmosphere by means of a novel imaging lidar system
通过新型成像激光雷达系统对大气进行实时、宽视场监测
  • 批准号:
    17510003
  • 财政年份:
    2005
  • 资助金额:
    $ 4.03万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Atmospheric Trace-Gas Detection Using Very High-Sensitive Laser Sensors
使用极高灵敏度激光传感器进行大气痕量气体检测
  • 批准号:
    08458140
  • 财政年份:
    1996
  • 资助金额:
    $ 4.03万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

相似海外基金

Attosecond dynamics of atoms and molecules
原子和分子的阿秒动力学
  • 批准号:
    20246023
  • 财政年份:
    2008
  • 资助金额:
    $ 4.03万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
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