NER: Novel Chiral Architectures of Magnetic Nanowires

NER：磁性纳米线的新型手性结构

• 批准号: 0709009
• 负责人: Leszek Malkinski
• 金额: $ 12.5万
• 依托单位: University of New Orleans
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-01 至 2009-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709009&HistoricalAwards=false
• 关键词: NER; Novel; Chiral; Architectures; Magnetic

NER: Novel Chiral Architectures of Magnetic NanowiresIntellectual Merit: The objective of this research is to create composite materials with magnetic nanometer-scale chiral (helical) internal structure. The composites will be fabricated using nanowires embedded in a host material. A new technology based on a rotating applied magnetic-field along with localized heating/cooling will rearrange the nanowires into chiral domains. The magnetic and optical properties of the composite will depend not only on the properties of individual nanowires (composition, size and shape) but also on their arrangement. These properties will be investigated to establish a relationship between the electromagnetic response and the micrometer and nanometer scale structure. This project will advance the science of complex magnetic and optically coupled nanostructures and may provide a route for creating materials with properties not found in natural materials, like negative refraction.Broader Impacts: The fabrication and understanding of magnetic nanostructures is essential for the future development of electronic devices. The proposed chiral architecture will provide additional flexibility when engineering materials for optical, magneto-optical and microwave frequency applications. Potential applications are high-density information storage, microwave devices and nanophotonics. In the wake of hurricane Katrina, research and education in emerging high-tech fields like nanotechnology is important to rebuilding southeast Louisiana's economy. The project is an extension of the existing nanoscience research and educational activities of the Advanced Materials Research Institute (AMRI) at the University of New Orleans. The combined outreach efforts allow undergraduate students from the local HBCU's to conduct research and increase the awareness of science and technology at the high school level.

NER：磁性纳米线的新型手性结构智力价值：这项研究的目的是创造具有磁性纳米级手性（螺旋）内部结构的复合材料。该复合材料将使用嵌入主体材料中的纳米线来制造。基于旋转施加磁场和局部加热/冷却的新技术将纳米线重新排列成手性域。复合材料的磁性和光学性质不仅取决于单个纳米线的性质（成分、尺寸和形状），还取决于它们的排列。 将研究这些特性，以建立电磁响应与微米和纳米尺度结构之间的关系。 该项目将推进复杂磁性和光耦合纳米结构的科学发展，并可能为创造具有天然材料所没有的特性（例如负折射）的材料提供一条途径。更广泛的影响：磁性纳米结构的制造和理解对于电子设备的未来发展至关重要。所提出的手性结构将为光学、磁光和微波频率应用的工程材料提供额外的灵活性。潜在的应用包括高密度信息存储、微波设备和纳米光子学。卡特里娜飓风过后，纳米技术等新兴高科技领域的研究和教育对于重建路易斯安那州东南部的经济非常重要。该项目是新奥尔良大学先进材料研究所（AMRI）现有纳米科学研究和教育活动的延伸。综合外展工作使当地 HBCU 的本科生能够开展研究并提高高中水平的科学技术意识。