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首页> 外文期刊>Journal of Applied Physics >Observation of spin-wave dispersion in Nd-Fe-B magnets using neutron Brillouin scattering
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Observation of spin-wave dispersion in Nd-Fe-B magnets using neutron Brillouin scattering

机译：Nd-Fe-B磁体中自旋波色散的中子布里渊散射观察

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摘要

The low-energy spin-wave dispersion in polycrystalline Nd-Fe-B magnets was observed using neutron Brillouin scattering (NBS). Low-energy spin-wave excitations for the lowest acoustic spin-wave mode were clearly observed. From the spin-wave dispersion, we were able to determine the spin-wave stiffness constant D_(sw) (100.0 ±4.9 meV.A~2) and the exchange stiffness constant A (6.6 ± 0.3 pJ/m).
机译：使用中子布里渊散射（NBS）观察到多晶Nd-Fe-B磁体中的低能自旋波色散。可以清楚地观察到最低声自旋波模式的低能自旋波激发。从自旋波色散可以确定自旋波刚度常数D_（sw）（100.0±4.9 meV.A〜2）和交换刚度常数A（6.6±0.3 pJ / m）。

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  • 来源
    《Journal of Applied Physics》 |2014年第2期|17A714.1-17A714.3|共3页
  • 作者

    K. Ono; N. Inami; K. Saito; Y. Takeichi; M. Yano; T. Shoji; A. Manabe; A. Kato; Y. Kaneko; D. Kawana; T. Yokoo; S. Itoh;

  • 作者单位

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Toyota Motor Corporation, Toyota, Aichi 471-8571, Japan;

    Toyota Motor Corporation, Toyota, Aichi 471-8571, Japan;

    Toyota Motor Corporation, Toyota, Aichi 471-8571, Japan;

    Toyota Motor Corporation, Toyota, Aichi 471-8571, Japan;

    Toyota Central R&D Labs. Inc., Aichi 480-1192, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;

  • 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);
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