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Dynamic Magnetic Properties of Ferroic Films, Multilayers, and Patterned Elements

机译:铁磁性薄膜,多层膜和图案化元素的动态磁性能

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摘要

Modification and control of material properties through careful manipulation of geometry on nano- and sub-nanometer length scales is a cornerstone of modern materials science and technology. An exciting area in which these concepts have provided exceptional advances has been magnetoelectronics and nanomagnetism. Important scales in magnetic metals are conduction spin diffusion lengths and distances over which local moments correlate. Advanced techniques now allow for the creation of structures patterned on these length scales in three dimensions. The focus of this article is on magnetic structures whose dynamic properties can be strongly modified by ion bombardment and lithographic patterning. Examples are given of how microwave frequency properties can be tuned with external fields, how factors controlling magnetic switching can be controlled, and how manipulation of magnetic domain walls can be used to reveal new and surprising phenomena.
机译:通过在纳米和亚纳米长度尺度上仔细地操纵几何形状来修改和控制材料属性是现代材料科学和技术的基石。这些概念在其中取得了令人瞩目的进步的令人兴奋的领域是磁电子学和纳米磁性。磁性金属的重要尺度是传导自旋扩散的长度和与局部矩相关的距离。现在,先进的技术可以在这些长度尺度上创建三维结构的图案。本文的重点是磁性结构,其动态特性可以通过离子轰击和光刻构图强烈改变。给出了如何利用外部场调节微波频率特性,如何控制控制磁开关的因素以及如何使用磁畴壁操纵来揭示新的令人惊讶的现象的示例。

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  • 来源
    《Advanced Functional Materials》 |2010年第15期|P.2380-2394|共15页
  • 作者

    Robert L. Stamps;

  • 作者单位

    School of Physics, University of Western Australia 35 Stirling Highway, Crawley, Western Australia, 6009 (Australia);

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  • 正文语种 eng
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