Magnetic Microstructure and Information Storage

磁性微结构与信息存储

• 批准号: 9100157
• 负责人: Marcel Muller
• 金额: $ 27.02万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9100157&HistoricalAwards=false
• 关键词: Magnetic; Microstructure; Information; Storage

High density information storage is an emerging technology crucial to international economic competitiveness. Magnetic and magneto-optic high density storage will continue to grow in economic importance for at least the next fifteen years, and perhaps beyond that. We propose to carry out a research program in magnetic microstructures as applied to information storage. The research will study several fundamental issues that should be addressed to bring the technology closer to thermal and quantum limits: Experimental investigations and modeling of the relation of physical and magnetic microstructure to fluctuations and noise is expected to lead the way to storage media with controlled and programmed microstructures. We plan to introduce novel computing methods using massively parallel processors into the micromagnetic modeling. Studies of medium and transducer micromagnetics will be aimed toward multielement sensors. Such sensors will be needed for servo systems capable of high density recording track following. We will also explore their possible application to adaptive sensing as an innovative method of eliminating microstructure related medium noise. This will involve research on signal processing algorithms appropriate to these sensors. A breakthrough in even one of these directions will have a far ranging technological and economic impact. Apart from the direct technological benefits expected from this research, it will have a lasting impact through its mission of teaching gifted professionals principles of information storage technology and magnetics, engineering disciplines that are underrepresented in United States universities to the serious detriment of our international competitiveness.

高密度信息存储是一项对国际经济竞争力至关重要的新兴技术。至少在接下来的15年里，磁和磁光高密度存储在经济上的重要性将继续增长，甚至可能超过15年。我们计划开展一项应用于信息存储的磁性微结构研究计划。这项研究将研究几个基本问题，这些问题应该解决，以使技术更接近热和量子限制：物理和磁性微结构与涨落和噪声关系的实验研究和建模预计将引领具有受控和编程微结构的存储介质的发展。我们计划在微磁模型中引入使用大规模并行处理器的新计算方法。介质和换能器微磁学的研究将以多元传感器为目标。能够高密度记录磁道跟踪的伺服系统将需要这样的传感器。我们还将探索它们在自适应传感中的可能应用，作为消除微结构相关介质噪声的一种创新方法。这将涉及到适合这些传感器的信号处理算法的研究。即使在这些方向中的一个方面取得突破，也会产生广泛的技术和经济影响。除了这项研究预期的直接技术好处外，它还将通过其向有天赋的专业人员传授信息存储技术和磁学原理的使命产生持久的影响，工程学科在美国大学中的代表性不足，严重损害了我们的国际竞争力。