Spectroscopic verification of nanometer-spaced modulated structure that T1 compound which is a candidate for a thermoelectric material shows
热电材料候选 T1 化合物显示的纳米间隔调制结构的光谱验证
基本信息
- 批准号:21560019
- 负责人:
- 金额:$ 3.08万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Three dimensional(3D) atomic images around the T1 atoms in single crystal T1InSe_2 thermoelectric material in the incommensurate(IC) phase were reconstructed using T1LIII X-ray fluorescence holography. Comparison of the experimentally obtained 3D images with the theoretical calculated ones suggests that the T1 atoms have extremely large spatial fluctuations, which are related to the IC phase of this material, and corresponds well to those proposed by theoretical phonon calculations. Furthermore, we observed a cross-type peculiar dispersive structure for T1GaTe_2 and T1Se by means of angle-resolved photoemission spectroscopy(ARPES). It is assumed that the observed peculiar dispersive structure is caused by the dispersion of high-lying surface conduction bands and that ARPES detects the joint density of states.
利用T1LIII X射线荧光全息术重建了单晶T1InSe_2热电材料中非通约(IC)相中T1原子周围的三维(3D)原子图像。实验获得的3D图像与理论计算图像的比较表明,T1原子具有极大的空间涨落,这与该材料的IC相有关,并且与理论声子计算提出的结果很好地吻合。此外,我们通过角分辨光电子能谱(ARPES)观察到T1GaTe_2和T1Se具有十字型奇特的色散结构。假设观察到的特殊色散结构是由高位表面导带的色散引起的,并且 ARPES 检测到态的联合密度。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Photoluminescence Study of AgInS_2 by Using Confocal Microscopy System
共焦显微镜系统的AgInS_2光致发光研究
- DOI:10.1143/jjap.50.05fc04
- 发表时间:2011
- 期刊:
- 影响因子:1.9
- 作者:U.Miyamoto;et al
- 通讯作者:et al
Temperature-dependent hard X-ray photoemission spectra of ternary T1 compounds with high Seebeck coefficient
高塞贝克系数三元T1化合物的温度依赖性硬X射线光电子发射光谱
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:K. Mimura;他11名
- 通讯作者:他11名
Bulk and surface electron states in quasi-one-dimensional Tl^<1+>Tl^<3+>Se_2
准一维 Tl^<1 >Tl^<3 >Se_2 中的体电子态和表面电子态
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Z.Jahangirli;K.Mimura;et al.
- 通讯作者:et al.
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MIMURA Kojiro其他文献
MIMURA Kojiro的其他文献
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{{ truncateString('MIMURA Kojiro', 18)}}的其他基金
Core-Level Photoemission Study on Temperature-Induced Valence Transition of Eu Compounds
Eu化合物温度诱导价态跃迁的核心级光电研究
- 批准号:
24540381 - 财政年份:2012
- 资助金额:
$ 3.08万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Observation of nanometer-spaced modulated structure causing Large Seebeck coefficient of the Tl compound: Angle-resolved photoemission study
观察导致 Tl 化合物大塞贝克系数的纳米间隔调制结构:角分辨光电研究
- 批准号:
18560014 - 财政年份:2006
- 资助金额:
$ 3.08万 - 项目类别:
Grant-in-Aid for Scientific Research (C)














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