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Enhanced Chemical Ordering and Coercivity in FePt Alloy Nanoparticles by Sb-Doping

机译：Sb掺杂增强FePt合金纳米粒子的化学有序性和矫顽力

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摘要

There is a great deal of interest in harnessing magnetic nanostructures for high-density memory devices to continue the remarkable doubling of recording density every 12-18 months seen in the last decade.'1' Realizing reliable storage media from nanostructured magnets, however, is a challenge because of the increased influence of thermally induced spin randomization (superparamagnetism) in decreased magnetic-bit volumes.'2' Since thermal stability of the magnetic bit increases with magnetocrystalline anisotropy,'3' Ku, nanostruc-turing high-/3 h)'14"16' also yield coalesced nanoparticles with broad size distributions and low Hc (=20-60 mT).
机译：利用磁纳米结构用于高密度存储设备引起了极大的兴趣，以继续过去十年中每12-18个月的记录密度显着翻倍。'1'然而，从纳米结构的磁体中实现可靠的存储介质是“ 2”由于磁钻头的热稳定性随磁晶各向异性而增加，“ 3” Ku，纳米结构高/ 3 h）'14“ 16”还会产生具有宽尺寸分布和低Hc（= 20-60 mT）的聚结纳米颗粒。

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  • 来源
    《Advanced Materials》 |2005年第18期|p. 2233-2237|共5页
  • 作者

    Qingyu Yan; Taegyun Kim; Amp Purkayastha; Pethuraja Gopal Ganesan; Mutsuhiro Shima; Ganapathiraman Ramanath;

  • 作者单位

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

    Materials Science & Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;

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  • 正文语种 eng
  • 中图分类 工程材料学;
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