Collaborative Research: Processing and Assembly of Devices with Tailored Magnetic Properties

合作研究：具有定制磁性能的器件的加工和组装

• 批准号: 1436623
• 负责人: Jennifer Andrew
• 金额: $ 27.27万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1436623&HistoricalAwards=false
• 关键词: Collaborative; Research; Processing; Assembly; Devices

Nanomaterials, materials with features ranging from 1-100 nm, have been developed with many unique properties, and a variety of techniques have been developed to produce these materials in large volumes at low cost. However to date, we lack commercial methods to incorporate these materials and their unique properties into novel devices, or to build these functions into materials over larger length scales. One particularly exciting collection of nanomaterials are composites that can use electricity to change magnetic properties and vice-versa. These materials could lead to the realization of new types of electronic devices, including new types of memory and data storage. In this project we seek to develop novel methods for synthesizing and assembling these materials into larger-scale optical devices that could find application in sensors, optical integrated circuits, and in data transmission and storage. Importantly, this effort includes research to measure and verify that these materials behave as designed once integrated into a manufactured device. Such quality control, especially monitoring during manufacturing, is critical to enable commercialization of these materials. This project combines the efforts of materials scientists at the University of Florida and physicists at the University of South Carolina to provide a unique interdisciplinary research environment for student researchers, critical for not only discovery but for future societal benefit for materials with properties that span multiple traditional scientific disciplines.This project addresses synthesis and assembly of devices built from multiferroic composite materials, i.e. materials that exhibit at least two, and sometimes three types of ferroic ordering in the same phase. In this project, activities center on biphasic fibers that combine a piezoelectric and a magnetostrictive material. The figure of merit for these multiferroics is the magnetoelectric coefficient, which measures the magnitude of the electric field generated when the multiferroic material is placed in an applied magnetic field. Using magnetic annealing and magnetic-field-directed self-assembly, research efforts will develop materials with enhanced magnetoelectric coefficients and assemble them into novel optical devices. In parallel, novel process metrologies will be implemented to characterize the properties of the fibers and devices built from them. These measurements will identify systematics and quantify magnetoelectric coupling in materials that are not amenable to more established characterization methodologies.

纳米材料（具有1-100 nm的特征的材料）已开发出许多独特的特性，并且已经开发出了多种技术来以低成本的价格生产大量材料。但是，迄今为止，我们缺乏将这些材料及其独特特性纳入新设备的商业方法，或者将这些功能构建到更大长度的材料中。纳米材料的一个特别令人兴奋的集合是可以使用电力来改变磁性特性的复合材料，反之亦然。这些材料可能会导致新型电子设备的实现，包括新型的内存和数据存储。在这个项目中，我们试图开发新的方法来合成和组装这些材料成大规模的光学设备，这些设备可以在传感器，光学集成电路以及数据传输和存储中找到应用。重要的是，这项工作包括研究和验证这些材料一旦整合到制造设备中的设计的行为。这种质量控制，尤其是制造过程中的监控，对于能够对这些材料进行商业化至关重要。该项目结合了佛罗里达大学材料科学家的努力，南卡罗来纳大学的物理学家为学生研究人员提供了独特的跨学科研究环境，这不仅对发现，而且对于跨越多个传统科学学科的材料的未来社会利益至关重要，这些材料的材料是多种材料的综合和材料组成的材料，这些材料至少是在多工业材料中构建的，这些材料及其材料的组合。在同一阶段。在这个项目中，活动中心的双相纤维中心，将压电和磁性材料结合在一起。这些多效应的功绩图是磁电系数，它测量当将多效材料放置在施加的磁场中时产生的电场的大小。使用磁退火和磁场定向的自组装，研究工作将开发具有增强磁电系数的材料，并将它们组装成新型的光学设备。同时，将实现新颖的过程计量，以表征由它们构建的纤维和设备的属性。这些测量结果将确定系统学并量化不适合更既定的特征方法的材料中的磁电耦合。