Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe65(Ni0.78Mn0.22)35
Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe65(Ni0.78Mn0.22)35
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DOI：
10.1143/jpsj.78.054711
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发表时间：
2009-05-01
影响因子：
1.7
通讯作者：
Igarashi, Tokuya
中科院分区：
文献类型：
--
作者：
Motoya, Kiyoichiro;Muro, Yuji;Igarashi, Tokuya
在磁场作用下对Fe-65（Ni_（0.78）Mn_（0.22））（35）自旋玻璃合金进行了中子散射研究。由短程铁磁关联引起的磁漫散射图样的幅度随着磁场的增加而显著减小。另一方面，外场对反铁磁短程关联产生的漫散射图样的影响很小。这些结果表明，铁磁和反铁磁短程关联区（铁磁和反铁磁团簇）在这种随机磁性材料中分别共存。
A neutron scattering study on a concentrated spin-glass alloy Fe-65(Ni0.78Mn0.22)(35) has been performed under magnetic field. The amplitude of the magnetic diffuse scattering pattern arising from short-range ferromagnetic correlations is markedly reduced by increasing magnetic field. On the other hand, the effect of external field on the diffuse scattering pattern arising from anti ferromagnetic short-range correlations is small. These results show that the regions of ferromagnetic and anti ferrornagnetic short-range correlations (ferromagnetic and antiferromagnetic clusters) coexist separately in this random magnetic material.