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的模板电化学制造的磁性位图案介质，以实现每平方英寸 10 太比特以上的数据存储密度，远远超过当今最先进的磁性数据存储系统。所提出的多方面研究的智力价值是有助于理解磁性合金的欠电势共沉积的材料科学和工程、超高密度方阵模板纳米加工的自限离子铣削的潜力以及空间效应超高各向异性铁铂材料体系中面心立方到面心四方相变动力学的限制。本项目过程中将开发的超高磁各向异性纳米结构阵列的可用性将进一步促进磁记录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，其中使用读/写纳米传感器的二维阵列来寻址图案化介质上的位。例如，在该项目过程中探索的极高数据存储位密度将足以用一台台式计算机满足世界上最大的公司的所有数据存储需求！拟议的计划将与现有的 NSF-REU、RET 和 NUE 计划以及研究人员积极参与的国家支持的计划相结合，以加强在科学和工程领域招募女性和代表性不足的少数群体。

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.