Synchotron Radiation Spectroscopy toward 21st Century

迈向21世纪的同步辐射光谱学

• 批准号: 10041118
• 负责人: SUGA Shigemasa
• 金额: $ 2.11万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10041118/
• 关键词: Synchrotron Radiation; high brilliance Soft X-ray; microscopy; high resolution photoemission; strongly eorrelated system; SPring-8; coherence; Fermiology

We visited several high brilliance synchrotron radiation facilities in USA, Europe and Taiwan to see their research activities and strategies into the 21ィイD1stィエD1 century. Generally speaking, the American facilities are making efforts to develop their own activity which is different from other SR facilities. Microscopy and imaging in ALS is one of the examples. Studies of electronic states of correlated electron systems are strongly promoted in Alladin, NSLS and SSRL. In European facilities, one finds variety of activities. For example, high resolution photoemission and luminescence spectroscopy are main subjects in MAX II, whereas wide fields are covered in BESSY II.In Japan, X-ray region is satisfactorily covered by high brilliance SR facility SPring-8. We have constructed a soft X-ray helical undulator beam line at SPring-8, which shows the far best performance between 500 and 2000eV over other SR facilities. High energy, high resolution bulk sensitive photoemission is performed by us for several strongly correlated electron systems. The results reported in Nature is stimulating wide interest in the world. This technique will make a breakthrough in photoemission spectroscopy of solids in 21ィイD1stィエD1 century.

我们参观了美国、欧洲和台湾的几个高亮度同步辐射设施，以了解他们进入21世纪ィイD1ィエD1世纪的研究活动和战略。总体而言，美国的设施正在努力发展自己的活动，这与其他SR设施不同。肌萎缩侧索硬化症的显微镜和成像就是一个例子。在Alladin、NSLS和SSRL中，关联电子系统电子态的研究得到了极大的推动。在欧洲的设施中，人们可以看到各种各样的活动。例如，高分辨率光电发射和发光光谱是MAX II的主要主题，而BESSY II涵盖了广泛的领域。在日本，高亮度SR设备SPRING-8令人满意地覆盖了X射线区域。我们已经在Spring-8建造了一条软X射线螺旋波荡器光束线，它在500 eV到2000 eV之间的性能远远好于其他的SR设备。我们对几个强关联电子系统进行了高能、高分辨率的体敏光电发射。发表在《自然》杂志上的研究结果引起了全世界的广泛兴趣。这项技术将在21世纪的第一个ィイ第一个ィエ的第一个世纪在固体光电子能谱领域取得突破。