Some Theoretical Studies of the Properties of Condensed Matter

凝聚态物质性质的一些理论研究

• 批准号: 9112830
• 负责人: W. Gilbert Clark
• 金额: $ 9万
• 依托单位: University of California-Los Angeles
• 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: 1991-08-15 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9112830&HistoricalAwards=false
• 关键词: Some; Theoretical; Studies; Properties; Condensed

Research will be undertaken to study nonperturbatively the role of anharmonicity for vibrations of random networks; to conduct numerical calculations of inelastic scattering amplitudes from vibrating fractal structures; to study the scaling properties of the sound velocity for mixed amorphous materials; and, to investigate the nuclear spin relaxation in dilute hole-doped high temperature superconductors. %%% Certain disordered materials exhibit structures which are best described by fractals. The proposed research uses the model of fractons, or excitations on a fractal structure, to interpret various physical properties of these disordered materials. Additional work will be conducted on nuclear relaxation in the high temperature superconductors.

将进行研究，以不受干扰地研究 随机网络振动的非谐性; 非弹性散射振幅的数值计算 振动分形结构;研究的标度特性 混合无定形材料的声速;以及 研究了稀掺空穴的高自旋 高温超导体 %%% 某些无序材料呈现出最好的结构， 用分形来描述。 本研究采用的模型为 分形，或分形结构上的激发，来解释 这些无序材料的各种物理性质。 将在高强度核弛豫方面进行更多的工作。 高温超导体