Experimental study of the magnetic phase diagrams of DyCu
Experimental study of the magnetic phase diagrams of DyCu
复制标题
DyCu磁相图的实验研究
DOI：
10.1088/0953-8984/9/35/017
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
F. Bourdarot
中科院分区：
文献类型：
--
作者：
M. Amara;P. Morin;F. Bourdarot
DyCu(CsCl型)在温度下具有反铁磁性。通过测量磁化曲线，建立了沿四轴和三轴施加磁场的(H，T)相图。在单晶的中子衍射实验的基础上，磁结构与所见的每一相有关。自发和场稳定的结构是多轴的，力矩指向三个或两个方向。在DyCu有序范围内的相序显示了三角对称性的反铁四极耦合。
DyCu (CsCl-type) orders antiferromagnetically at . By measuring magnetization curves, the (H, T) phase diagrams are established for magnetic fields applied along fourfold and threefold axes. On the basis of neutron diffraction experiments on single crystals, magnetic structures are associated with each of the phases seen. The spontaneous and field-stabilized structures are multiaxial, with moments pointing along threefold or twofold directions. The phase sequence in the ordered range of DyCu reveals antiferroquadrupolar couplings of trigonal symmetry.