Magnetic properties of hexagonal and cubic Fe3Ge
Magnetic properties of hexagonal and cubic Fe3Ge
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六方晶系和立方晶系 Fe3Ge 的磁性
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
F. Woude
中科院分区：
文献类型：
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作者：
J. Drijver;S. Sinnema;F. Woude
用穆斯堡尔效应技术和磁化强度测量研究了金属间化合物Fe3Ge的六方相和立方相。两相均为铁磁性材料，T_c=640K，u_(Fe)=2.0u B(六方)，T_c=740K，m_(Fe)=2.2u B(立方)。在六方相中，在380K观察到自旋翻转。这一转变似乎是二级的。在立方相中，择优自旋方向为(100)。在这个阶段，57Fe核的超精细场的各向异性部分很大(+18Koe)。讨论了这种各向异性的起源。
The hexagonal and cubic phases of the intermetallic compound Fe3Ge have been investigated with the Mossbauer effect technique and magnetization measurements. In both phases the material is ferromagnetic with Tc=640K and mu Fe=2.0 mu B (hexagonal), and Tc=740K and mu Fe=2.2 mu B (cubic). In the hexagonal phase a spin-flip is observed at 380K. This transition appears to be of second order. In the cubic phase the preferred spin direction is (100). In this phase the anisotropic part of the hyperfine field at the 57Fe nucleus is large (+18 kOe). The origin of this anisotropy is discussed.