High Precision Landau Quantum Oscillation Measurements in the Normal and Mixed States of High-Temperature Superconductors

高温超导体正常状态和混合状态下的高精度朗道量子振荡测量

• 批准号: 9115594
• 负责人: Roy Goodrich
• 金额: $ 25.76万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-15 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9115594&HistoricalAwards=false
• 关键词: Precision; Landau; Quantum; Oscillation; Measurements

This is a joint effort (involving LSU, UT and ORNL) to study intrinsic, normal-state electronic properties of materials that form high-temperature superconductors. Measurements will be made of Landau quantum oscillations in both the normal (n) and superconducting (sc) mixed states . The physics studied includes Fermi-surface topologies, effective masses and scattering rates for electrons in the n state; the interaction of n electrons with flux vortices in the mixed state; and superconductivity in the presence of a strongly Landau-quantized, n-state background. % % % The measurements are expected to furnish unique data that will lead to a better understanding of the precise nature of high- temperature superconductivity.

这是一项共同努力（涉及路易斯安那州立大学、德克萨斯大学和橡树岭国家实验室），旨在研究形成高温超导体的材料的固有正常状态电子特性。 将对正常 (n) 和超导 (sc) 混合态下的朗道量子振荡进行测量。 研究的物理学包括费米面拓扑、n 态电子的有效质量和散射率； n 个电子与混合态通量涡旋的相互作用；以及强朗道量子化、n 态背景下的超导性。 % % % 这些测量预计将提供独特的数据，从而更好地了解高温超导性的精确性质。