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Study of density wave dynamics in organic conductors by optical pump and terahertz probe experiments

Study of density wave dynamics in organic conductors by optical pump and terahertz probe experiments
利用光泵和太赫兹探针实验研究有机导体中的密度波动力学
批准号:
20740170
负责人:
WATANABE Shinichi
金额:
$2.83万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2009

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中文摘要
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英文摘要
Photoexcited dynamics of the spin density-wave (SDW) state in a linear-chain compound bis-(tetramethyl-tetraselenafulvalene)hexafluorophosphate, (TMTSF)_2PF_6, is investigated by optical pump and terahertz probe experiments. After the ultrashort laser-pulse excitation, a sudden closing followed by a recovery of the SDW gap is clearly observed in the far-infrared spectrum. The recovery time is found to diverge toward the phase-transition temperature, T_<SDW>, while the gap remains open at T_<SDW>. The observed critical slowing down behavior is interpreted in terms of fluctuation which enlarges near the phase transition temperature.
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(TMTSF)2PF6スピン密度波ギャップスペクトルの光誘起変化と回復過程
(TMTSF) 2PF6自旋密度波隙谱的光致变化及恢复过程
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者: [渡邉紳一, 近藤隆祐, 鹿児島誠一, 島野亮]
通讯作者: 島野亮
Observation of ultrafast photoinduced closing and recovery of the spin-density-wave gap in (TMTSF)2PF6
(TMTSF)2PF6 中自旋密度波间隙超快光致闭合和恢复的观察
DOI: --
发表时间: 2009
期刊: Phys. Rev. B80,220408(R)
影响因子: --
作者: [S. Watanabe, R. Kondo, S. Kagoshima, R. Shimano]
通讯作者: R. Shimano
Ultrafast terahertz probe of spin-density wave dynamics in organic conductor (TMTSF)2PF6
有机导体中自旋密度波动力学的超快太赫兹探针 (TMTSF)2PF6
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者: [S. Watanabe, R. Kondo, S. Kagoshima, R. Shimano]
通讯作者: R. Shimano
Spin-density-wave gap in (TMTSF)_2PF6 probed by terahertz time domain spectroscopy
太赫兹时域光谱探测 (TMTSF)_2PF6 中的自旋密度波隙
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [Wei Li, Xiaohong Li, Defeng Guo, Kiminori Sato, D.V.Gunderov, V.V.Stolyarov, Xiangyi Zhang, Shinichi Watanabe]
通讯作者: Shinichi Watanabe
21
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