Collaborative Research: Dynamic Mode, High Density, Probe Based Data Storage

目的：随身携带存储和访问大量数据的需求从小尺寸消费电子产品的普遍使用中可见一斑，在这种消费电子产品中，对每英寸太比特的面积密度的需求被预测出来。传统的数据存储模式正在达到可实现的面积密度的基本限制。基于原子力显微镜原理的基于探头的数据存储解决方案采用了具有原子尺度图像数据分辨率的力探头。信息以面积为几平方纳米的压痕的形式存储。基于探测器的高密度数据存储有望在短期内提供每平方英寸几太比特的密度。将在提案目标下开发基于动态模式探测器的数据存储平台。智力优势：将为高密度数据存储应用开发探测器动力学的实时模型。与以前工作中使用的静态模式操作相比，将采用导致对介质和探头的作用力显著减小的动态模式操作。克服了当前动态模式中存在的读取数据的速度和读取数据的分辨率之间的根本折衷，导致检测速度提高了两个数量级。该提案的物理建模部分将对探测器和介质之间出现的力进行适当程度的抽象，保持易于处理，并足以用于数据存储目的。通信系统建模与设计目标部分将制定数据存储系统的通信通道模型。将为该系统开发高效和高性能的检测器和差错控制码。广泛影响：提案目标如果实现，将直接影响消费电子市场，并将提供一种小尺寸、高密度的数据存储替代方案。将通过交换学生访问和举办专门讲习班，在学术界和工业界之间实现知识的协同转移。将开发一门关于基于探测器的数据存储的新课程，该课程将在系统和物理界之间架起技术桥梁。

Objective: The need for storing and accessing large amounts of data with the ease of being portable is apparent from the ubiquitous use of small form factor consumer electronics where demands for terabit per inch square areal densities is predicted. Conventional modes of data storage are reaching fundamental limitations on the areal densities achievable. Probe based data storage solutions, based on atomic force microscopy principles employ a force probe that has the resolution to image data at the atomic scale. Information is stored in the form of indentations that are a few square nanometers in area. Probe based high density data storage has the promise of delivering a few terabit per square inch densities in the near term. The dynamic mode probe based data storage platform will be developed under the proposal goals.Intellectual Merit: A real-time model of the probe dynamics will be developed for high density data storage applications. The dynamic mode operation that leads tosignificantly smaller forces on the media and the probe will be employed as compared to the static mode operation that has been used in previous work. The fundamental tradeoff between the speed of reading the data and the resolution of the read data existing in current dynamic modes is overcome, leading to two orders increase in the detection speed. The physical modelling part of the proposal will provide an appropriate level abstraction of the forces appearing between the probe and media that remains tractable and is sufficient for data storage purposes. The communication system modelling and design objectives part will develop a communication channel model of the data storage system. Efficient and high performance detectors and error control codeswill be developed for the system.Broader impacts: The proposal objectives if achieved will directly impact theconsumer electronics market and will provide a small form factor high density data storage alternative. Synergistic transfer of know how between the academia and industry by exchanging student visits and presenting specialized workshops will be achieved. A new course on probe based data storage that bridges the know how between the systems and physics communities will be developed.