Neutron diffraction investigation of the magnetic structure of the Mn2Sb pnictide at high pressures
Neutron diffraction investigation of the magnetic structure of the Mn2Sb pnictide at high pressures
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DOI：
10.1134/1.1529925
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发表时间：
2002-12
影响因子：
0.6
通讯作者：
V. M. Ryzhkovskii;V. Glazkov;V. S. Goncharov;D. Kozlenko;B. Savenko
中科院分区：
文献类型：
--
作者：
V. M. Ryzhkovskii;V. Glazkov;V. S. Goncharov;D. Kozlenko;B. Savenko
本文报道了 T=300 K 时高压（高达 5.3 GPa）对 Mn2Sb 磷族元素磁结构影响的研究结果。使用直接中子衍射方法研究了 Mn2Sb 化合物的晶体和磁结构。结果表明，由于 Mn2Sb 晶格中的各向异性压力刺激应变，在上述范围内的高压下，在 Mn2Sb 晶格化学压缩时在许多 Mn2Sb 基替代固溶体中观察到的磁性亚铁磁体-反铁磁体相变不会发生在 Mn2Sb 化合物中。在压力P≥2.8 GPa 时，Mn2Sb 化合物的特征是相对于四方轴和晶格基面的自旋重新取向。
This paper reports on the results of investigations into the influence of high pressures (up to 5.3 GPa) atT=300 K on the magnetic structure of the Mn2Sb pnictide. The crystal and magnetic structures of the Mn2Sb compound are studied using a direct neutron diffraction method. It is demonstrated that the magnetic ferrimagnet-antiferromagnet phase transition, which is observed in a number of Mn2Sb-based substitutional solid solutions upon chemical compression of the Mn2Sb crystal lattice, does not occur in the Mn2Sb compound under high pressures in the aforementioned range due to an anisotropic pressure-stimulated strain in the Mn2Sb lattice. At pressuresP≥2.8 GPa, the Mn2Sb compound is characterized by a spin reorientation with respect to the tetragonal axis and the basal plane of the crystal lattice.