The antiferromagnetic and ferromagnetic properties of Fe2MnSi
The antiferromagnetic and ferromagnetic properties of Fe2MnSi
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Fe2MnSi的反铁磁和铁磁特性
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
P. J. Webster
中科院分区：
文献类型：
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作者：
K. Ziebeck;P. J. Webster
本文报道了化学计量比金属间化合物Fe_2MnSi的磁化强度、磁化率、X射线和中子粉末衍射的测量结果。在室温下，该化合物是顺磁性的，使得晶体结构能够被建立为具有一定程度的优先D0 3无序的L21。在69和214 K之间，化合物是铁磁性的，但低于69 K，锰原子变得反铁磁性有序，而铁原子保持铁磁性排列。这与构型磁对称性向菱面体的变化相一致，其中反铁磁排列的磁矩沿着[111]方向定向。
Abstract The results of extensive magnetization, susceptibility, X-ray and neutron powder diffraction measurements on the stoichiometric intermetallic compound Fe2MnSi are reported. At room temperature the compound is paramagnetic enabling the crystallographic structure to be established as L21 with some degree of preferential DO3 disorder. Between 69 and 214 K the compound is ferromagnetic but below 69 K the manganese atoms become antiferromagnetically ordered whilst the iron atoms remained ferromagnetically aligned. This coincides with a change in the configurational magnetic symmetry to rhombohedral, in which the antiferromagnetically aligned moments are directed along the [111] direction.