Neutron scattering study on spin correlations and fluctuations in the transition-metal-based magnetic quasicrystal Zn-Fe-Sc

DOI DOI Web Site Web Site 被引用文献2件 オープンアクセス

書誌事項

公開日
2008-01-29
権利情報
  • http://link.aps.org/licenses/aps-default-license
DOI
  • 10.1103/physrevb.77.014437
  • 10.48550/arxiv.0712.2635
公開者
American Physical Society (APS)

この論文をさがす

説明

Spin correlations and fluctuations in the 3d-transition-metal-based icosahedral quasicrystal Zn-Fe-Sc have been investigated by neutron scattering using polycrystalline samples. Magnetic diffuse scattering has been observed in the elastic experiment at low temperatures, indicating development of static short-range-spin correlations. In addition, the inelastic scattering experiment detects a $Q$-independent quasielastic signal ascribed to single-site relaxational spin fluctuations. Above the macroscopic freezing temperature $T_{\rm f} \simeq 7$ K, the spin relaxation rate shows Arrhenius-type behavior, indicating thermally activated relaxation process. In contrast, the relaxation rate remains finite even at the lowest temperature, suggesting a certain quantum origin for the spin fluctuations below $T_{\rm f}$.

To be published in Phys. Rev. B

収録刊行物

  • Physical Review B

    Physical Review B 77 (1), 014437-, 2008-01-29

    American Physical Society (APS)

被引用文献 (2)*注記

もっと見る

キーワード

問題の指摘

ページトップへ