CAREER: Surface Acoustic Wave Addressable Solid State Magnetic Memory

职业：表面声波可寻址固态磁存储器本研究的目的是开发一种新型固态磁存储器的基本技术，并证明其可行性，其中数据的存储和检索是由表面声波完成的。该方法是使用交叉换能器相控阵来激发、引导和聚焦表面声波在连续磁致伸缩薄膜上，用于读取或写入数据。E和逆磁致伸缩效应分别用于读和写。智力优势：本文提出的实验将是第一个证明由表面声波引起的逆磁致伸缩效应的实验。此外，高频表面声波与磁致伸缩材料之间相互作用的研究将为磁-机械耦合的物理学提供开创性的理解。更广泛的影响：所提出的存储器件的主要优势在于其辐射硬度，机械稳健性（无移动部件）以及可能比现有固态存储技术更低的成本。设想将其与便携式消费电子和空间应用的产品结合起来。本课题的研究成果将为磁表面声波器件的研究开辟一个新的领域。这些设备的潜在应用将包括传感器、可调滤波器和二维联想存储器。该项目将培养包括不同工程学科的研究生和本科生。从拟议的工作中学到的知识将纳入工程课程，并通过出版物和简报传播。拟议的教育推广工作涉及高中女学生和K-12教师。

CAREER: Surface Acoustic Wave Addressable Solid State Magnetic Memory The objective of this research is to develop the basic technology and demonstrate the feasibility of a novel solid state magnetic memory in which the storage and retrieval of data is accomplished by surface acoustic waves. The approach is to use a phased array of interdigitated transducers to excite, steer and focus the surface acoustic waves on a contiguous magnetostrictive thin film for reading or writing data. E and inverse magnetostrictive effects are exploited respectively for reading and writing.Intellectual Merit: The experiments proposed herein will be a first undertaking to demonstrate the inverse magnetostrictive effect due to surface acoustic waves. Additionally, the investigation of the interaction between high frequency surface acoustic waves and magnetostrictive materials will provide seminal understanding of the physics of magneto-mechanical coupling. Broader Impact: Key advantages of the proposed memory device arise from its radiation hardness, mechanical robustness (no moving components) and likely lower cost than existing solid state memory technologies. It is envisaged for integration with products in portable consumer electronic and space applications. It is expected that the results from this project will forge a new area of research on magnetic surface acoustic wave devices. Potential applications for these devices will include sensors, tunable filters and 2-D associative memory. The project will train graduate and undergraduate students in subjects encompassing diverse engineering disciplines. The learning from the proposed work will be assimilated into the engineering curriculum, and disseminated through publications and presentations. The proposed educational outreach effort involves high school female students and K-12 teachers.