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利用精密模板制备的电化学法制备的磁性位图案化介质的数据存储密度达到每平方英寸10太比特以上，远远超过目前可用的S甚至最先进的磁性数据存储系统。提出的多方面研究的智力价值在于有助于理解材料科学和工程中磁性合金的欠电位共沉积，自限离子球磨用于超高密度方阵模板纳米制备的潜力，以及空间限制对超高各向异性铁-铂材料体系面心立方到面心四方相变动力学的影响。在该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对磁记录可伸缩性极限的基础研究。这项研究的更广泛的影响是使一系列变革性的数据存储应用成为可能，例如基于探针的数据存储，其中使用读/写纳米换能器的二维阵列来寻址图案化介质上的位。这个项目过程中要探索的极高的数据存储位密度是否足以满足世界上所有的数据存储需求？S是世界上最大的公司，只有一台台式计算机！拟议的方案将与现有的NSF-REU、RET和NUE方案以及国家支持的方案相结合，调查人员积极参与这些方案，以促进妇女和代表性不足的少数群体进入科学和工程领域。

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.