CAREER: Surface Acoustic Wave Addressable Solid State Magnetic Memory

职业：表面声波可寻址固态磁存储器

• 批准号: 0645236
• 负责人: Pallavi Dhagat
• 金额: $ 40万
• 依托单位: Oregon State University
• 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: 2007-04-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0645236&HistoricalAwards=false
• 关键词: CAREER; Surface; Acoustic; Wave; Addressable

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.

职业：声表面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础技术，并证明其可行性，其中数据的存储和检索是由声表面波完成的。该方法是使用一个相位阵列的叉指换能器激发，转向和聚焦表面声波上的连续磁致伸缩薄膜的阅读或写数据。E和逆磁致伸缩效应分别用于阅读和writing.Intellectual优点：本文提出的实验将是第一个承诺，以证明由于表面声波的逆磁致伸缩效应。此外，高频表面声波和磁致伸缩材料之间的相互作用的调查将提供开创性的理解的物理磁-机械耦合。更广泛的影响：所提出的存储器设备的主要优点在于其抗辐射性、机械鲁棒性（没有移动部件）以及可能比现有固态存储器技术更低的成本。它被设想为与便携式消费电子和空间应用中的产品集成。本计画之研究成果可望开拓磁声表面波元件之研究新领域。这些器件的潜在应用将包括传感器、可调谐滤波器和2-D联想存储器。该项目将在涵盖各种工程学科的科目中培训研究生和本科生。从拟议的工作中学习将被吸收到工程课程，并通过出版物和演示文稿传播。拟议的教育推广工作涉及高中女生和K-12教师。