Local Moment and Heavy Fermion Physics

局域矩和重费米子物理

• 批准号: 9614999
• 负责人: Piers Coleman
• 金额: $ 22.5万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-12-15 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9614999&HistoricalAwards=false
• 关键词: Local; Moment; Heavy; Fermion; Physics

9614999 Coleman This grant continues the support of the PI's theoretical work on a variety of problems in materials with strongly correlated electrons. The research program consists of related topics in heavy fermion materials (compounds based on Cerium and Uranium with anomalously large specific heats) and the wider theme of non-Fermi liquid behavior. The plan of research includes: Strong coupling study of Hund's interaction in heavy fermion materials, non-linear susceptibility of a non-Fermi liquid metal, theory of optical Hall conductivity, odd frequency pairing and certain phenomenological formulations of a Kondo insulator. The research builds on the PI's breakthrough work during the previous grant on the properties of non-Fermi liquid materials and on unconventional superconductivity. %%% Many of the Cerium and Uranium based compounds have extraordinarily large specific heats, as if the electrons were a thousand times heavier. Ever since the discovery of these materials in mid-eighties, there has been a continuing interest in the properties of these materials. The PI has been active in this area, with recent contributions to the possibility of unconventional superconductivity and exotic forms of magnetism. This grant is to further support the work of this very imaginative and creative scientist. ***

9614999科尔曼此补助金继续支持PI的理论工作的各种问题的材料与强相关的电子。 该研究计划包括重费米子材料（基于铈和铀的化合物，具有非常大的比热）的相关主题和非费米液体行为的更广泛主题。 研究计划包括：重费米子材料中Hund相互作用的强耦合研究，非费米液态金属的非线性磁化率，光学霍尔电导率理论，奇频率配对和Kondo绝缘体的某些唯象公式。 该研究建立在PI在先前授予非费米液体材料和非常规超导性的性质方面的突破性工作的基础上。 许多铈和铀基化合物具有非常大的比热，就好像电子重一千倍。 自从八十年代中期发现这些材料以来，人们一直对这些材料的性质感兴趣。 PI在这一领域一直很活跃，最近对非常规超导性和奇异形式的磁性的可能性做出了贡献。 这笔赠款是为了进一步支持这位非常富有想象力和创造力的科学家的工作。 ***