Research in Condensed Matter Theory

凝聚态理论研究

• 批准号: 8716816
• 负责人: Richard Prange
• 金额: $ 38.88万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-05-15 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716816&HistoricalAwards=false
• 关键词: Research; Condensed; Matter; Theory

Dr. Prange has developed a comprehensive theory of the magnetism of itinerant electron materials, and has made important contributions to theories of the Quantum Hall Effect, Quantum Chaos, Electron gases with restricted dimensionality, and Superconductivity in highly disordered systems, among others. In particular, the connection he found among Anderson localization, quantum chaos, and electronic states in incommensurate potentials continues to elucidate all three fields. His work on magnetism is supported by new experimental data and new calculations on spin polarized photoemission. Degradation and enchancement of critical temperatures by disorder, in different classes of superconducting materials will be explained as well as the temperature and disorder dependence of the inelastic scattering time in thin metal films. The work will be further elaborated with projects in high temperature superconductivity, in transport properties of itinerant ferromagnets, in Quantum Chaos, in the Quantum Hall Effect, and in the properties of electronic interface states.

Prange博士发展了巡回电子材料磁性的全面理论，并在量子霍尔效应、量子混沌、受限维度电子气和高度无序系统中的超导等理论方面做出了重要贡献。特别是，他在安德森定域化、量子混沌和无公度势中的电子态之间发现的联系继续阐明了这三个领域。他在磁学方面的工作得到了新的实验数据和自旋极化光电子发射的新计算的支持。解释了不同类型超导材料中临界温度的无序退化和增强，以及金属薄膜中非弹性散射时间与温度和无序的关系。这项工作将通过高温超导、巡回铁磁体的输运性质、量子混沌、量子霍尔效应和电子界面态的性质等项目进一步阐述。