Experiments on the Electrodynamics of Charged Quantum Liquids

带电量子液体的电动力学实验

基本信息

批准号：
9503009
负责人：
George Gruner
金额：
$ 36万
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：
1995
资助国家：
美国
起止时间：
1995-11-15 至 1998-10-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9503009&HistoricalAwards=false
关键词：
Experiments Electrodynamics Charged Quantum Liquids

项目摘要

9503009 Gruner This project investigates the surface electrodynamic response of metallic systems referred to as charged quantum liquids. The experiments are unique in that they probe a broad frequency range, at low temperatures, where deviations from conventional Fermi liquid behavior can be pronounced. The experiments will provide important tests of theories of non-Fermi liquids. The project involves low temperatures, to 0.35 Kelvin, and high magnetic fields, to 9 Tesla. The materials to be investigated include UPt3, a conventional Fermi liquid, and suspected non-Fermi liquid alloys, cerium-copper-gold and uranium-yttrium-palladium, as well as two-dimensional organic metals. The work is of fundamental interest, but the results may also bear on other important non-Fermi liquid materials such as the high temperature superconductors. %%% This project looks at the response of unusual metallic systems, including so-called organic metals, to a broad range of electromagnetic radiation (light). The response to the radiation is measured at very low temperatures and at very high magnetic fields. The motivation of the work is to understand differences in the response of these materials as compared to ordinary metals, whose electrical properties are much better understood. The experiments are technically complex and can only be carried out in a few laboratories in the world. The materials to be investigated include UPt3, a conventional metallic material, the suspected non-conventional metal alloys: cerium-copper-gold and uranium-yttrium-palladium, as well as two-dimensional "organic" metals. The work is of fundamental interest, but the results may also bear on other important non-Fermi liquid materials such as the high temperature superconductors. ***

9503009 Gruner这个项目研究了称为带电的量子液体的金属系统的表面电动力响应。这些实验是独一无二的，因为它们在低温下探测了较大的频率范围，在低温下，偏离常规费米液体行为的偏差。该实验将提供非Fermi液体理论的重要检验。该项目涉及低温到0.35开尔文和高磁场，至9特斯拉。将要研究的材料包括UPT3，一种常规的费米液体以及可疑的非富特液体合金，铜铜金 - 金和铀 - 含 - 钯 - 李奶粉，以及二维有机金属。这项工作具有根本的兴趣，但结果也可能对其他重要的非富特液体材料（例如高温超导体）产生。 %%％该项目着眼于包括所谓有机金属在内的不寻常金属系统对广泛的电磁辐射（光）的响应。在非常低的温度和非常高的磁场下测量对辐射的响应。与普通金属相比，这项工作的动机是了解这些材料响应的差异，而普通金属的电性能可以更好地理解。这些实验在技术上很复杂，只能在世界上一些实验室中进行。要研究的材料包括UPT3，一种常规的金属材料，可疑的非惯性金属合金：铜铜金 - 金铜和铀 - 含 - 钯 - 以及二维“有机”金属。这项工作具有根本的兴趣，但结果也可能对其他重要的非富特液体材料（例如高温超导体）产生。 ***