US-India Cooperative Research: Density Functional Theory of the Mixed State in Layered Superconductors with Pinning

美印合作研究：钉扎层状超导体混合态的密度泛函理论

• 批准号: 0352598
• 负责人: Oriol Valls
• 金额: --
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-01 至 2010-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0352598&HistoricalAwards=false
• 关键词: US; India; Cooperative; Research; Density

0352598Valls, OriolDescription: This award supports the US-India collaborative research entitled Density Functional Theory of the Mixed State in Layered Superconductors with Pinning. Professors Oriol Valls, University of Minnesota-Twin Cities and Chandan Dasgupta, Indian Institute of Science (IISc), Bangalore will carry out numerical simulations to study the mixed phases of high-temperature superconductors in the presence of various types of random pins. This project is important for understanding the vortex properties in superconductors. The test system is the archetype for studying the effects of quenched disorder on the structure and melting of solids. The density functional approach, which is an original method for studying melting of ordered and disordered vortex systems, has been used successfully by these investigators and is likely to succeed in the present context. This research is very important for applications of superconductivity and could have far-reaching technological and fundamental impacts. Scope: Additionally, it will develop a partnership between a leading US institution and the foremost center for theoretical condensed matter research in South Asia. The PIs are prominent, well-recognized physicists and leaders of the density functional technique. Professor Valls has made important contributions to superconductivity. Students, postdocs and the research groups at both institutions will benefit from this collaboration, which is jointly funded by the Government of India's Department of Science and Technology (DST) under the NSF/DST program.

描述：该奖项支持美印合作研究，题为“层状超导体中混合态的密度泛函理论”。明尼苏达大学双城分校的Oriol Valls教授和班加罗尔印度科学研究所（IISc）的Chandan Dasgupta教授将进行数值模拟，研究各种类型随机引脚存在下高温超导体的混合相。这个项目对于理解超导体中的涡旋特性具有重要意义。该测试系统是研究淬火无序对固体组织和熔化影响的原型。密度泛函方法是研究有序和无序涡旋系统熔化的一种原始方法，已经被这些研究者成功地应用，并且很可能在目前的情况下取得成功。这项研究对超导的应用具有重要意义，并可能产生深远的技术和基础影响。范围：此外，它将在美国领先的机构和南亚最重要的理论凝聚态研究中心之间建立伙伴关系。pi是杰出的，公认的物理学家和密度泛函技术的领导者。瓦尔斯教授对超导性作出了重要贡献。这两个机构的学生、博士后和研究小组将从这次合作中受益，该合作是由印度政府科学技术部（DST）根据国家科学基金会/DST计划共同资助的。