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首页> 外文期刊>Journal of Applied Physics >Ferromagnetic Resonance in Polycrystalline Nickel Ferrite Aluminate
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Ferromagnetic Resonance in Polycrystalline Nickel Ferrite Aluminate

机译:多晶镍铁氧体铝酸盐中的铁磁共振

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摘要

Line broadening because of crystalline anisotropy and the random orientation of the crystallites is investigated for the case in which the anisotropy field is much larger than the saturation magnetization. The theory predicts an absorption line with shoulders on each side which correspond to grains in which a hard or an easy direction is aligned with the dc field. With increasing anisotropy the low-field side of the line becomes more prominent and for γHa/ω≳·5 a secondary absorption peak occurs on the low-field side of the main resonance. Measurements in nickel ferrite aluminates at X band agree reasonably well with the predictions, if it is assumed that the first order anisotropy constant is negative and that all higher order anisotropy constants are zero.
机译:对于各向异性场远大于饱和磁化强度的情况,研究了由于晶体各向异性和微晶的无规取向导致的线展宽。该理论预测一条吸收线,该吸收线的每侧都具有肩部,与硬或易方向与dc场对齐的晶粒相对应。随着各向异性的增加,谱线的低场侧变得更加突出,对于γHa/ω≳·5,在主共振的低场侧出现了次级吸收峰。如果假设一阶各向异性常数为负,且所有较高阶各向异性常数为零,则X波段铝酸镍铝酸盐的测量值与预测值相当吻合。

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  • 来源
    《Journal of Applied Physics》 |1958年第3期|共3页
  • 作者

    Schlomann E.; Zeender J. R.;

  • 作者单位

    Research Division, Raytheon Manufacturing Company, Waltham, Massachusetts;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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