Infrared Spectroscopy of High-Tc Superconductors in High Magnetic Field

强磁场中高温超导体的红外光谱

• 批准号: 0705171
• 负责人: Dimitri Basov
• 金额: $ 34.5万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-15 至 2010-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0705171&HistoricalAwards=false
• 关键词: Infrared; Spectroscopy; Tc; Superconductors; Magnetic

Technical:This individual investigator award will support continued infrared magneto-optical studies of high-Tc superconductors. The proposed experiments: 1) will deliver critically important insights into the emergence of the conducting state in doped Mott insulators, 2) will produce a detailed experimental picture of the high-energy effects at the onset of superconductivity - which is directly related to the behavior of the energetics of the superconducting state and 3) will provide new information on the vortex state response of high-Tc cuprates. The proposal outlines concrete steps to disentangle materials-specific properties of cuprates from the intrinsic characteristics generic to all high-Tc superconductors. The integration of research and education within a challenging program will aid the preparation of highly skilled personnel with expertise spanning condensed matter physics, optics and materials science.Non-technical:This proposal describes a comprehensive program for infrared (IR) magneto-optic studies of high-Tc superconductors in high magnetic fields. The problem of high-Tc superconductivity in cuprates is surpassed by few, if any, other unresolved problems in contemporary physics - in view of its richness, complexity, impact on other fields and potential technological importance. This proposal outlines new opportunities for making significant advances in this challenging problem. A successful completion of the proposed program is enabled by a confluence of several factors including recent progress in the development of instrumentation for IR magneto-optics and newly emerging availability of well characterized single crystals of novel high-Tc materials which are ideally suited to address a number of specific long standing issues. Equally important for the success of the program is dedicated effort of the PI to recruit talented graduate students for research in his group, including students belonging to groups currently underrepresented in graduate education. The latter task will be accomplished by engaging in research undergraduates from institutions with a large fraction of students belonging to underrepresented groups. Furthermore, the PI will develop a course on "Ethics in physics" that will be offered to upper division undergrads and graduate students at UCSD. The purpose of this course is to inspire, from the very beginning, an ethical vision of scientific work thus raising students' awareness of the tremendous impact their work can have in society.

技术：这项个人研究者奖将支持高Tc超导体的持续红外磁光研究。拟议的实验：1）将提供至关重要的洞察到掺杂莫特绝缘体中导电状态的出现，2）将产生超导开始时的高能效应的详细实验图片-这与超导状态的能量学行为直接相关，3）将提供关于高Tc铜酸盐的涡旋状态响应的新信息。该提案概述了将铜酸盐的材料特定性质与所有高Tc超导体的固有特性分开的具体步骤。在一个具有挑战性的计划的研究和教育的整合将有助于高技能人才的准备与专业知识跨越凝聚态物理，光学和材料science.Non-technical：该提案描述了一个全面的计划红外（IR）磁光研究的高Tc超导体在高磁场。铜酸盐中的高温超导问题在当代物理学中几乎没有其他未解决的问题-考虑到其丰富性，复杂性，对其他领域的影响和潜在的技术重要性。该提案概述了在这一具有挑战性的问题上取得重大进展的新机会。一个成功的完成拟议的计划是由几个因素的汇合，包括最近的进展，在仪器的IR磁光和新出现的可用性以及表征单晶的新型高Tc材料，非常适合于解决一些特定的长期存在的问题。对于该计划的成功同样重要的是PI致力于招募有才华的研究生在他的小组中进行研究，包括属于目前在研究生教育中代表性不足的群体的学生。后一项任务将通过让来自大部分学生属于代表性不足群体的机构的研究型本科生参与来完成。此外，PI将开发一门关于“物理学伦理”的课程，将提供给UCSD的高年级本科生和研究生。本课程的目的是从一开始就激发科学工作的道德视野，从而提高学生对他们的工作在社会中可能产生的巨大影响的认识。