Structural and magnetic properties of the Fe3−xMnxAl system
Structural and magnetic properties of the Fe3−xMnxAl system
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Fe3−xMnxAl 系的结构和磁性
DOI：
10.1016/s0022-4596(76)80007-2
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发表时间：
1976
影响因子：
3.3
通讯作者：
W. Wallace
中科院分区：
文献类型：
--
作者：
A. Ilyushin;W. Wallace
测定了Fe_3-−_xMn_xAl三元系的结构、体磁性质和穆斯堡尔谱。对于750C淬火的样品，在x=0到0.75时存在DO3结构，在1.25时到3.00时为β-Mn结构，在x=0.75时到1.25时为两相系统。当Fe_3Al中的Fe被Mn取代时，居里温度降低，表明铁磁交换作用减弱。室温下x=0.75的穆斯堡尔谱为单重态。具有β-Mn结构的三元系中的光谱表明有两种类型的铁。穆斯堡尔谱图的强度表明，Fe优先占据β-Mn结构中的一个位置。
Structures, bulk magnetic properties and Mössbauer spectra for Fe3−xMnxAl ternaries have been determined. For samples quenched from 750°C the DO3structure is found forx=0 to 0.75, the β-Mn structure from 1.25 to 3.00 and a two phase system betweenx=0.75 and 1.25. The Curie temperature decreases as Fe in Fe3Al is replaced by Mn, indicating a weakening of ferromagnetic exchange. The Mössbauer spectrum at room temperature forx=0.75 is a singlet. The spectra in the ternaries having the β-Mn structure indicate two types of Fe. The intensities in the Mössbauer pattern suggest that Fe is preferentially occupying one of the sites in the β-Mn structure.