Collaborative Research: Magneto-Electric Nanostructures for Novel Microwave Signal Processing Devices

这项合作研究的目的是制造和研究新型一维铁磁-铁电纳米结构中的磁电相互作用，并将其用于创新的器件应用。该计划的动机是理论模型，建议更强的相互作用，在这样的纳米结构的几何形状比标准的薄膜和层压结构。该方法是合成纳米线和纳米管复合材料的铁电材料，如铅锆钛酸盐或钛酸钡，与亚铁磁性镍或钴铁氧体。智力优点：计划进行一项全面的研究计划，包括以下组成部分：样品制造，结构表征，磁电相互作用研究跨越了很宽的频率范围，设备研究和理论建模。努力将集中在使用创新的加工方法创造新的纳米结构，并研究它们用于一类新的电磁场可调的微波器件。在亚拉巴马大学，PI将领导样品制造、结构表征和器件制造工作;而物理性能测量、理论研究和器件应用将由奥克兰大学的PI领导。更广泛的影响：这些工作将汇集一个多学科的研究团队，为科学知识、教育推广和基础设施做出重大贡献，并可能为国防和消费电子产品带来大量下一代器件。 该计划将为研究生和本科生提供支持，包括代表性不足的少数民族，并有助于他们广泛的跨学科培训。项目人员将与当地学校合作，促进高中生参与研究。

The objective of this collaborative research is to fabricate and study the magneto-electric interactions in novel one-dimensional ferromagnetic-ferroelectric nanostructures, and to exploit them for innovative device applications. The program is motivated by theoretical models that suggest much stronger interactions in such nanostructure geometries than in standard thin films and laminate structures. The approach is to synthesize nanowire and nanotube composites consisting of ferroelectric materials, such as lead zirconium titanante or barium titanate, with ferrimagnetic nickel- or cobalt ferrite. Intellectual Merit:A comprehensive research program is planned consisting of the following components: sample fabrication, structural characterization, magneto-electric interaction studies spanning a wide frequency range, device studies, and theoretical modeling. Efforts will focus on the creation of novel nanostructures using innovative processing methods and examine their use for a new class of microwave devices that are both electric and magnetic field tunable. At the University of Alabama, the PI will lead the sample fabrication, structural characterization and device fabrication efforts; while the physical property measurements, theoretical studies and device applications will be led by the PI at Oakland University.Broader Impact:The efforts will bring together a multidisciplinary team of investigators that will make significant contributions to scientific knowledge, education outreach and infrastructure, and potentially lead to a host of next-generation devices for the national defense and consumer electronics. The program will provide support for graduate and undergraduate students, including underrepresented minorities, and contribute to their broad interdisciplinary training. Project personnel will collaborate with local schools to facilitate participation by high school students in research.