Nanoscale Spin Transfer Devices and Materials

这是一个纳米磁学合作项目，来自纽约大学和位于纽约约克敦高地的IBM的研究人员参与其中。其目的是进一步了解和应用纳米级的自旋转移装置和材料。在微型磁性设备中，电流可以在磁性层之间传输自旋角动量，并产生磁反转和磁激励。这可能使具有大磁各向异性的纳米磁铁能够快速而连贯地反转--否则，这种反转需要很大的局部磁场。这对于增加磁信息存储密度很重要。这个项目将通过研究新的器件结构和材料来解决有关电流和磁化之间相互作用的性质的重要基本问题。一个重要的组成部分是应用一种新的批量制造的纳米模板-衬底方法，使具有纳米级横向尺寸(100 Nm)的多层结构能够快速成型。这项研究将与年轻科学家的培训相结合：参与这一合作的研究生和本科生将从学术界和工业界之间的互动以及纽约大学和IBM之间许多计划中的学生交流中受益。高中生(对英特尔科学研究感兴趣)也将参与这项研究。该项目汇集了纽约大学和IBM的研究人员，目的是促进对纳米级磁性设备和材料的理解和应用。磁性纳米结构在技术上得到了广泛的应用，其中最先进的应用是信息处理。这在美国是一个重要的行业，正在迅速增长，全球对数据处理和存储的需求不断增长。最近发现，在微型磁性设备中，直流电可以通过一种称为自旋转移的机制来改变磁化方向。这是一个令人兴奋的发展，可能会使磁信息处理和存储方面的显著改进成为可能。关于电流和磁化之间相互作用的性质，有许多重要和基本的问题，这个项目将通过研究新的器件结构和材料来解决。这项研究将与这一磁学研究前沿领域的青年科学家的培训相结合。参与这一合作的研究生和本科生将受益于学术界和工业界之间的互动，以及纽约大学和IBM之间许多计划中的交流。高中生(对英特尔科学研究感兴趣)也将参与这项研究。

This is a nanomagnetism collaboration that involves researchers from New York University and IBM, Yorktown Heights, NY. The aim is to further understand and apply nanoscale spin-transfer devices and materials. In miniature magnetic devices an electrical current can transport spin angular momentum between magnetic layers and produce magnetic reversal as well as magnetic excitations. This may enable rapid and coherent reversal in nanomagnets with large magnetic anisotropy -- a reversal that would otherwise require large local magnetic fields. This is important to increasing magnetic information storage density. This project will address important fundamental questions about the nature of the interaction between the current and the magnetization through studies of new device structures and materials. An essential component is the application of a new batch-fabricated nanostencil-substrate methodology to enable the rapid prototyping of multilayer structures with nanometer scale lateral dimensions (100 nm). This research will be integrated with the training of young scientists: Graduate and undergraduate students involved in this collaboration will gain by interactions between academia and industry and through the many planned student exchanges between NYU and IBM. High school students (with interests in Intel Science Research) will also participate in this research.This project brings together researchers from New York University and IBM with the aim of furthering the understanding and application of nanometer scale magnetic devices and materials. Magnetic nanostructures are widely used in technology with the most advanced applications found in information processing. This is a significant industry in the United States that is growing rapidly, with ever-increasing worldwide demands for data processing and storage. It has recently been discovered that in miniature magnetic devices a direct electrical current can switch the direction of magnetization by a mechanism know as spin-transfer. This is an exciting development that may enable dramatic improvements in magnetic information processing and storage. There are many important and fundamental questions about the nature of the interaction between the current and magnetization that this project will address through the investigation of new device structures and materials. This research will be integrated with the training of young scientists in this forefront area of magnetism research. Graduate and undergraduate students involved in this collaboration will gain by interactions between academia and industry and through the many planned exchanges between NYU and IBM. High school students (with interests in Intel Science Research) will also participate in this research.