Novel Functional Materials with Multinary Freedoms

具有多元自由度的新型功能材料

• 批准号: 13CE2002
• 负责人: TAKABATAKE Toshiro
• 金额: $ 434.91万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for COE Research
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13CE2002/
• 关键词: Exotic superconductors; Thermoelectric materials; Hydrogen storage materials; Physical properties under extreme conditions; Raman spectroscopy; Electron tunneling spectroscopy; Photoemission spectroscopy; Materials design; 多極子秩序; 軌道秩序; バンド計算; 窒

Yamanaka discovered new exotic superconductors and various types of clathrates by electron doping to layer-structured metal nitride halides and by high pressure synthesis, respectively.Takabatake clarified the mechanism of the gap formation in Kondo semiconductors whose power factors are higher than conventional thermoelectric materials at low temperatures.Fujii discovered novel high-capacity hydrogen storage inorganic materials through investigations on the chemical reaction mechanism.Yagi developed a new method of detecting charge imbalance of non-equilibrium superconductivity using small tunnel junction devices fabricated with nanotechnology.Sera clarified the mechanisms of multipolar ordering in CeB_6-related compounds and exotic superconductivity in layer-structured metal nitride halides and PrOs_4Sb_<12>.Suzuki discovered the pressure-induced superconductor - insulator transition in the chalcogenide spinel compound CuRh_2S_4. His team determined the electronic band structure of s … More uperconductors La_<2-x>Sr_xCuO4 and Nd_<2-x>Ce_xCuO_4 by means of HX-PES, SX-PES and XAS.Udagawa found the rattling motion of rare-earth guest ions in various caged compounds and shielding effects of charge carriers for the rattling by Raman scattering spectroscopy.Ekino carried out STM/STS investigations and observed characteristic structures and electronic properties with atomic resolution for novel superconductors and thermoelectric materials.Taniguchi and Namatame clarified fine electronic structures near the Fermi level of Kondo semiconductors and exotic superconductors by means of high-resolution photoemission spectroscopy using synchrotron radiationOguchi clarified the electronic structure of several superconducting, thermoelectric and hydrogen-storage materials and designed a novel multiferroic system Bi_2MnNiO_6, on the basis of first-principles calculations.Jo theoretically demonstrated roles of soft x-ray absorption linear dichroism in identifying the orbital polarization and its ordering in transition-metal compounds.Nagai elucidated the sound propagation in liquid He-3 immersed in aerogel, and proposed a quasi-classical theory of boundary effect in anisotropic BCS states. Less

Yamanaka分别通过电子掺杂到层状结构的金属氮化卤化物和高压合成发现了新的奇异超导体和各种类型的笼形物。Takabatake阐明了在低温下功率因数高于传统热电材料的近藤半导体的间隙形成机制。藤井通过对化学反应机理的研究，发现了新型高容量储氢无机材料。Yagi开发了一种利用纳米技术制造的小隧道结装置检测非平衡超导电荷不平衡的新方法。澄清了ceb_6相关化合物的多极有序机制和层状结构金属氮化卤化物和PrOs_4Sb_<12 bbb_的奇异超导机制。Suzuki在硫系尖晶石化合物CuRh_2S_4中发现了压力诱导的超导体-绝缘体转变。利用HX-PES、SX-PES和XAS测定了s…More超导体La_<2-x>Sr_xCuO4和Nd_<2-x>Ce_xCuO_4的电子能带结构。Udagawa利用拉曼散射光谱研究了稀土客体离子在不同笼状化合物中的咔嗒运动和载流子对咔嗒运动的屏蔽效应。Ekino开展了STM/STS研究，并以原子分辨率观察了新型超导体和热电材料的特征结构和电子特性。Taniguchi和Namatame利用同步辐射的高分辨率光电发射光谱澄清了近道半导体和外来超导体在费米能级附近的精细电子结构。oguchi澄清了几种超导、热电和储氢材料的电子结构，并在第一性原理计算的基础上设计了一种新的多铁系统Bi_2MnNiO_6。从理论上证明了软x射线吸收线性二色性在识别过渡金属化合物的轨道极化及其排序中的作用。Nagai阐述了He-3浸入气凝胶中的声音传播，并提出了各向异性BCS态边界效应的准经典理论。少

项目成果

Hydrogen desorption properties of the Ca-N-H system

• DOI: 10.1016/j.jallcom.2005.01.052
• 发表时间: 2005-08-02
• 期刊: JOURNAL OF ALLOYS AND COMPOUNDS
• 影响因子: 6.2
• 作者: Hino, S;Ichikawa, T;Fujii, H
• 通讯作者: Fujii, H

New Metal−N−H System Composed of Mg(NH2)2 and LiH for Hydrogen Storage

• DOI: 10.1021/jp048002j
• 发表时间: 2004-06
• 期刊: Journal of Physical Chemistry B
• 影响因子: 3.3
• 作者: H. Leng;T. Ichikawa;S. Hino;Nobuko Hanada;S. Isobe;H. Fujii

Magnetic and transport characteristics in Gd 0.925 La 0.075 Mn 2 Ge 2 with two-dimensional alignment of Mn atoms

• DOI: 10.1103/physrevb.63.174440
• 发表时间: 2001-04
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: T. Fujiwara;H. Fujii;T. Shigeoka

Determination of the orbital polarization in YTiO3 by using soft X-ray linear dichroism.

• DOI: 10.1103/physrevlett.93.257207
• 发表时间: 2004-12
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: F. Iga;M. Tsubota;M. Sawada;Hong-bin Huang;Souichiro Kura;Masaki Takemura;K. Yaji;M. Nagira;A. Kimura;T. Jo;T. Takabatake;H. Namatame;M. Taniguchi;M. Taniguchi

水素社会の実現を目指して

旨在实现氢社会

• 发表时间: 2005
• 期刊: 季報 エネルギー総合工学 28(2)
• 作者: 藤井博信