GOALI: Fabrication and Device Physics of Bit-Patterned Magnetic Recording Media

GOALI：位图磁记录介质的制造和器件物理

• 批准号: 0926027
• 负责人: Dmitri Litvinov
• 金额: $ 36.49万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0926027&HistoricalAwards=false
• 关键词: GOALI; Fabrication; Device; Physics; Bit

The research outlined in this proposal explores the downward scalability of magnetic bit-patterned media with a defined target of reaching the fundamental magnetic data storage limit (i.e., the superparamagnetic limit) at a bit size of approximately 3-4 nm using the guided self-assembly of highly anisotropic magnetic nanoparticles in precision-fabricated templates. The technology to be developed during the course of this project will give rise to unprecedented capabilities, such as meeting the data storage needs of the world's largest corporations on a single desktop computer, or storing the entire contents of the Library of Congress on an iPod! The intellectual merit of the proposed research is multi-faceted, offering unique insights to the science of guided self-assembly, to the mechanisms of the self-limiting ion milling for high-fidelity template fabrication, and to the synthesis of highly anisotropic magnetic nanoparticles. Furthermore, this work will dramatically expand current theoretical models and experimental testing in the recording physics of magnetic bit-patterned media. Specifically, the availability of genuine nanostructured arrays, which will be developed during the course of this project, will enable fundamental studies of the limits of the micromagnetic formalism widely used for the theoretical modeling of magnetic nanostructures.The broader technological impacts of the proposed research include the development of state-of-the-art nanofabrication technologies that expand our current capabilities far beyond the projected goals of the international semiconductor technology roadmap. The availability of ultra-high-density magnetic media will enable a range of transformative magnetic data-storage applications, including probe-based data storage devices in which a two-dimensional array of read/write nanotransducers can be used to address the bits on a patterned disk. Low cost, low power consumption, and small size are key attributes that make probe storage an attractive solution for mobile applications (e.g., hand-held computers and cellular telephones).With regard to broader impacts on society as a whole, the University of Houston serves the most ethnically diverse student body among doctoral-degree-granting institutions. It is from this diverse student body that the bulk of our graduate students are drawn. Furthermore, the research program outlined here will be integrated with existing NSF-REU, RET, NUE, and GK-12 programs as well as various national and state-supported programs in which the investigators actively enhance the recruitment of women and underrepresented minorities into the fields of science and engineering. The program will also provide research projects that will be compliant with the University of Houston's undergraduate Capstone program. Moreover, the knowledge gained over the course of this program will be disseminated through the newly adopted Nanoengineering Minor Option, which launches in the fall of 2009.

该提案中概述的研究探讨了磁性比特图案介质的向下可扩展性，其定义的目标是使用大约3-4 nm的基本磁数据存储限制（即超paragnetic lop），使用大约3-4 nm，使用高度各向异性磁性磁性含量的指导性自组装，以精密的磁性含量为单位。 该项目期间要开发的技术将带来前所未有的功能，例如在单台台式计算机上满足世界上最大的公司的数据存储需求，或在iPod上存储国会图书馆的整个内容！拟议的研究的智力优点是多方面的，为指导自组装科学提供了独特的见解，对自限制的离子铣削的机制，用于高保真模板的制造，以及高度各向异型的磁性纳米粒子的合成。 此外，这项工作将大大扩展当前的理论模型和磁性介质的记录物理学中的实验测试。 具体而言，将在该项目过程中开发的真正纳米结构阵列的可用性将对广泛用于磁性纳米结构的理论建模的局限性进行基本研究路线图。 超高密度磁化介质的可用性将使一系列变换的磁数据存储应用程序，包括基于探针的数据存储设备，其中二维读/写入纳米传感器可用于解决图案磁盘上的位。 低成本，低功耗和小尺寸是使探针存储成为移动应用程序的有吸引力的解决方案（例如，手持计算机和蜂窝电话）。就整个社会而言，休斯顿大学为整个社会产生了更大的影响，在博士学位良好的学位学院中，休斯顿大学提供最多样化的学生团体。 正是从这个多元化的学生团体中，我们的大部分研究生都被吸引了。 此外，此处概述的研究计划将与现有的NSF-REU，RET，NUE和GK-12计划以及各种民族和国家支持的计划集成，其中研究人员会积极地增强妇女和代表性不足的少数民族在科学和工程领域的招募。 该计划还将提供符合休斯顿大学本科生顶峰计划的研究项目。 此外，在该计划的过程中获得的知识将通过新近采用的纳米工程次要选择来传播，该选项将于2009年秋季推出。