GOALI: Electrochemical Nanofabrication of High-Anisotropy Bit-Patterned Magnetic Arrays using Self-Limiting Ion Milling Fabricated Templates

本研究的目的是展示使用精密制造模板的电化学制造磁性位图形介质，以实现每平方英寸10太比特以上的数据存储密度，远远超过当今可用的数据存储密度。即使是最先进的磁性数据存储系统。所提出的多方面研究的知识价值在于有助于理解磁性合金欠电位共沉积的材料科学和工程，超高密度方基模板纳米制造的自限制离子铣削潜力，以及超高各向异性铁-铂材料体系中空间限制对面心立方到面心四方相变动力学的影响。超高磁各向异性纳米结构阵列的可用性将在这个项目的过程中开发，将进一步促进磁记录的可扩展性限制的基础研究。这项研究的更广泛影响是实现一系列变革性数据存储应用，例如基于探针的数据存储，其中使用二维读/写纳米换能器阵列来处理图案介质上的位。例如，在这个项目中将要探索的极高的数据存储比特密度是否足以满足世界上所有的数据存储需求？美国最大的拥有一台台式电脑的公司！拟议的计划将与现有的NSF-REU、RET和NUE计划以及国家支持的计划相结合，在这些计划中，研究人员积极参与，以加强对妇女和代表性不足的少数民族进入科学和工程领域的招募。

The objective in this research is to demonstrate electrochemically fabricated magnetic bit-patterned media using precision fabricated templates to achieve data storage densities above ten terabit per square inch, far surpassing what is available in today?s even most advanced magnetic data storage systems.The intellectual merit of the proposed multifaceted research is to contribute to the understanding of the materials science and engineering of underpotential codeposition of magnetic alloys, the potential of self-limiting ion milling for ultrahigh density square matrix template nanofabrication, and the effects of spatial confinement on face-centered-cubic to face-centered-tetragonal phase transformation kinetics in ultrahigh anisotropy iron-platinum materials system. The availability of ultrahigh magnetic anisotropy nanostructured arrays that will be developed in the course of this project will further facilitate the fundamental studies of the scalability limits of magnetic recording.The broader impact of this research is to enable a range of transformative data-storage applications such as probe-based data storage, in which two-dimensional arrays of read/write nanotransducers are used to address the bits on patterned media. Extremely high data storage bit densities to be explored in the course of this project will be sufficient, for example, to serve all the data storage needs of the world?s largest corporation with a single desktop computer! The proposed program will be integrated with existing NSF-REU, RET, and NUE programs as well as State-supported programs, in which the investigators actively participate, to enhance the recruitment of women and underrepresented minorities into the fields of science and engineering.