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Physical Properties of Transuranium Compounds

超铀化合物的物理性质

基本信息

批准号：
01044012
负责人：
SUZUKI K.
金额：
$ 7.36万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1991
项目状态：
已结题

项目摘要

It is very important to establish of unified model of strong correlated electron systems with localized 4f electron and itenerant 3d electron in solid state. 5f electron system situates just between 3d and 4f systems and very important to research in fundermental solid state physics. Main purpose of this project is to make further extension of this important research with international corporation and overcome the poor situation of Japan side research through this project. Fortunatly in our country the new Actinide research are granted by the Ministry of Education, Science and Culture for Oarai branch of Institute for Material Research in Tohoku university. We wished to send the key persons in Oarai branch to Karlsruhe institute to absorbe several experience stored for past 20 years in European scientist and contribute to further extension of Oarai branch of IMR. They are specialists for crystal growth and 4f substances in fundamental physics. In this respect, the low carrier systems of Actinide compounds to be explored are thought as the most interesting and fascinating. So we proposed to prepare new systems such as transuranium pnictides and chalchogenides. Another point of this project is the Actinide research problem in the world. We thouhgt that real purified single crystals were not yet confirmed in their produced many samples to be showed dHvA oscillations which proved the sample quality and gave the foundation of the physical insights. So we proposed to check the all samples in Karlsruhe if the dHvA signal obtain or not. However the situations in Europe could not immediately respond to this proposal, because they had not enough equipments to respond our proposals. Then we propose to establish the apparatus to confirm the good samples or not and feed back how to produce the sample to show dHvA effects in Grenoble.

建立固态局域4f电子和迭代3d电子强相关电子系统的统一模型非常重要。 5f电子系统位于3d和4f系统之间，对于基础固体物理研究非常重要。该项目的主要目的是与国际公司进一步推广这一重要研究，并通过该项目克服日本方面研究的不良状况。幸运的是，在我国，新的锕系元素研究得到了文部科学省的资助，属于东北大学材料研究所大洗分院。我们希望将大洗分院的骨干人员派往卡尔斯鲁厄研究所，吸收欧洲科学家20年来积累的一些经验，为IMR大洗分院的进一步发展做出贡献。他们是基础物理学中晶体生长和 4f 物质的专家。在这方面，待探索的锕系化合物的低载流子系统被认为是最有趣和迷人的。因此我们提出制备超铀磷族化合物和硫族化合物等新体系。该项目的另一点是世界上锕系元素的研究问题。我们认为，真正纯化的单晶尚未在其生产的许多样品中得到证实，显示出 dHvA 振荡，这证明了样品质量并为物理见解提供了基础。因此我们建议检查卡尔斯鲁厄的所有样本是否获得dHvA信号。然而欧洲的情况无法立即响应这个建议，因为他们没有足够的设备来响应我们的建议。然后我们建议建立一个装置来确认样品是否良好，并反馈如何生产样品以在格勒诺布尔显示 dHvA 效果。