Acquisition of a UV Photon Sourse for Novel Electronic Materials Research and Education

获取用于新型电子材料研究和教育的紫外光子源

• 批准号: 0315715
• 负责人: Hong Ding
• 金额: $ 9.3万
• 依托单位: Boston College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-10-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0315715&HistoricalAwards=false
• 关键词: Acquisition; UV; Photon; Sourse; Novel

This grant provides support for the acquisition of a vacuum ultraviolet (VUV) photon source for novel electronic materials research and education at Boston College.Comparing to a conventional VUV source, this microwave driven VUV source has the capability of generating 200 times more flux and improving the resolution by 10 times. Several research projects require this new instrument: (1) Measuring the electronic structures of the single-layered cuprate thin films. The single-crystalline thin films can be easily controlled to a continuous doping level over a wide range. To overcome the difficulty of cleaving, we propose to anneal thin films in situ and transfer them to a measurement chamber. (2) Searching for evidence of spin-charge separation in well-aligned carbon nanotubes. With the capability of growing well-aligned carbon nanotubes, we plan to directly observe the phenomenon of spin-charge separation. (3) Probing electronic structures of quasi-1D organic superconductors. The unprecedented capability of this new VUV source will enable us to design and conduct many new experiments to study various novel electronic materials in an on-campus laboratory. These research projects will advance our understanding of Mott physics, novel superconductivity, Luttinger liquid, and Fermi liquid, all of which are the essential parts of modern condensed matter physics. In addition, modifications and improvements on this VUV source will be a major contribution to the instrumentation development in the photoemission community. The acquisition of this powerful VUV photon source will make a significant impact to the education and training of post-docs, graduate and undergraduate students by attracting them to a much-improved research facility. This is especially true for undergraduate students due to its on-campus location. We will encourage underrepresented minorities to participate the proposed projects. This will introduce them to exciting new materials, cutting-edge techniques, and fundamental condensed matter physics. The collaborative nature of this project will be beneficial to their long-term academic development. Finally, this project will greatly enhance the infrastructure at our university as well as in the regional photoemission community.

该笔拨款资助波士顿学院购置一台真空紫外光子源，用于新型电子材料的研究和教育。与传统的真空紫外光源相比，这种微波驱动的真空紫外光源的通量增加了200倍，分辨率提高了10倍。几个研究项目需要这种新的仪器：（1）测量单层铜氧化物薄膜的电子结构。单晶薄膜可以很容易地控制到在宽范围内的连续掺杂水平。为了克服劈裂的困难，我们建议在原位退火薄膜，并将它们转移到测量室。(2)在排列良好的碳纳米管中寻找自旋-电荷分离的证据。凭借生长排列良好的碳纳米管的能力，我们计划直接观察自旋-电荷分离现象。(3)准一维有机超导体的电子结构研究。这种新的VUV源的前所未有的能力将使我们能够设计和进行许多新的实验，在校园实验室中研究各种新型电子材料。这些研究项目将促进我们对莫特物理，新型超导，Luttinger液体和费米液体的理解，所有这些都是现代凝聚态物理的重要组成部分。此外，对这种真空紫外光源的修改和改进将是光电发射领域仪器发展的一个重要贡献。这种强大的真空紫外光子源的获得将对博士后，研究生和本科生的教育和培训产生重大影响，吸引他们到一个大大改进的研究设施。对于本科生来说尤其如此，因为它位于校园内。我们将鼓励代表性不足的少数民族参与拟议项目。这将向他们介绍令人兴奋的新材料，尖端技术和基本凝聚态物理学。该项目的协作性质将有利于他们的长期学术发展。最后，该项目将大大加强我们大学以及区域光电发射社区的基础设施。