Moment-Induced Magnetic Scattering and Magnetovolume Effect in Fe 65 (Ni 1− x Mn x ) 35 Alloys
Moment-Induced Magnetic Scattering and Magnetovolume Effect in Fe 65 (Ni 1− x Mn x ) 35 Alloys
复制标题
Fe 65 (Ni 1− x Mn x ) 35 合金中的力矩诱导磁散射和磁体积效应
DOI：
10.1143/jpsj.26.24
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发表时间：
1969
影响因子：
1.7
通讯作者：
Yoji Nakamura
中科院分区：
文献类型：
--
作者：
M. Shiga;Yoji Nakamura
测量了面心立方Fe 65（Ni 1-xMnx）35三元合金的电阻率和热膨胀系数随温度的变化关系。铁磁合金的电阻率（x 0.3）在低于尼尔温度时增加，并显示出电阻最小值。这些行为解释的磁散射的诱导力矩低于磁有序温度。在铁磁和反铁磁合金中观察到由于磁有序引起的体积膨胀。为了从磁有序化的角度解释体积膨胀现象，提出了一种新的基于自旋极化引起的结合能变化的磁体积效应机制。
The temperature dependences of electrical resistivity and thermal expansion were measured for face-centered cubic Fe 65 (Ni 1- x Mn x ) 35 ternary alloys. The electrical resistivity of ferromagnetic alloys ( x 0.3) increases below the Neel temperature and shows a resistance minimum. These behaviors are explained in terms of the magnetic scattering by induced moments below the magnetic ordering temperature. The expansion of volume due to the magnetic ordering was observed in both ferro- and antiferromagnetic alloys. To explain the volume expansion by the magnetic ordering, a new mechanism of magnetovolume effect based on the change of cohesive energy due to the spin polarization in 3 d band is proposed.