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

目标：从无处不在的小尺寸消费电子产品中可以明显看出，存储和访问大量易于携带的数据的需求，预计每英寸平方面积密度的需求为太比特。传统的数据存储模式在可实现的面密度方面已经达到了基本的限制。基于原子力显微镜原理的基于探针的数据存储解决方案采用具有原子尺度成像数据分辨率的力探针。信息以几平方纳米大小的压痕的形式存储。基于探针的高密度数据存储有望在短期内实现每平方英寸几太比特的密度。在此目标下，将开发基于动态模式探测的数据存储平台。智力优势：探头动态的实时模型将被开发用于高密度数据存储应用。与先前工作中使用的静态模式操作相比，将采用动态模式操作，该操作会导致介质和探头上的力明显更小。克服了当前动态模式中读取数据的速度和读取数据的分辨率之间的基本权衡，从而使检测速度提高了两个数量级。该建议的物理建模部分将提供探针和介质之间出现的力的适当级别抽象，这仍然易于处理，并且足以用于数据存储目的。通信系统建模和设计目标部分将建立数据存储系统的通信通道模型。将为该系统开发高效、高性能的检测器和错误控制代码。更广泛的影响：如果提案目标实现，将直接影响消费电子市场，并将提供一种小尺寸高密度数据存储替代方案。通过交换学生访问和举办专门讲习班，实现学术界和工业界之间的知识协同转移。将开发一门新的基于探针的数据存储课程，将系统和物理社区之间的知识联系起来。

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.