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New physics of low dimensional helium-three

低维氦三新物理

基本信息

批准号：
10203101
负责人：
OKUDA Yuichi
金额：
$ 14.91万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10203101/
关键词：
superfluid 3He surface tension liquid 3He Fermi liquid 3He film third sound electrons on He one dimensional 3He magnetism of 3He film bilayerquantum Hall (QH) state metal-insulator transition AB transition multiple spin exchange

项目摘要

The goal of the present project is to attain the deep understanding of the strongly correlated Fermi-system, 3He, by introducing the low dimensionality to the system.This "Sohkatsu-han" team is the headquarter of the whole project, which steers and orient the project. One of the biggest tasks of the team is to organize the "work-shop" of the project, which is open to the community of low temperature physics in Japan. We had three such workshops during the project period. Each time we had about 100 participants and 40-45 presentations. The member of the project presented their plans and recent results. At the same time, the topics close to the project were presented by non-members of the project. The hot and thorough discussions were done. Especially young scientists were deeply stimulated by the workshop. Eventually this "Sohkatsu-han" team worked out well as a head quarter. Finally we would like to list up the main results attained by this project.1. The temperature dependence of the surface tension in the low temperature was well understood.2. 3rd sound experiment of superfluid 3He film was developed.3. Magnetism of 2nd and 3rd layer 3He adsorbed on the HD pre-plated graphite was clarified.4. Weak localization and 2-dimensional Fermi-liquid behavior of 3He film were clarified and divergence of the effective mass of 3He was observed for the first time.The project will be over at the end of March 2001, but the research seeded by the project would continue. Eventually it can be said that the project was successful.

本项目的目标是通过对强关联费米系统3 He的低维化来实现对该系统的深入理解。“Sohkatsu-han”团队是整个项目的指挥部，负责指导和定位项目。该小组最大的任务之一是组织该项目的“工作室”，该工作室向日本的低温物理界开放。在项目期间，我们举办了三次这样的讲习班。每次我们有大约100名参与者和40-45个演讲。该项目的成员介绍了他们的计划和最近的成果。与此同时，与项目密切相关的主题由非项目成员提出。热烈而深入的讨论结束了。特别是年轻的科学家们深受讲习班的启发。最终，这个“Sohkatsu-han”团队作为总部工作得很好。最后，我们想列出这个项目所取得的主要成果。较好地理解了低温下表面张力的温度依赖性.开展了第三次超流~ 3 He薄膜声学实验.阐明了吸附在HD预镀石墨上的第二层和第三层3 He的磁性.该项目将于2001年3月底结束，但该项目的种子研究将继续进行。最终可以说，这个项目是成功的。