Magnetic Phase Diagram of TbRu2Si2
Magnetic Phase Diagram of TbRu2Si2
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TbRu2Si2 的磁相图
DOI：
10.7567/jjaps.32s3.336
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发表时间：
1993
影响因子：
1.5
通讯作者：
N. Iwata
中科院分区：
文献类型：
--
作者：
T. Shigeoka;S. Kawano;T. Kishino;S. Mitsuyoshi;S. Mitani;N. Iwata
在4.2 ~ 60 K温度范围内，对TbRu_2Si_2单晶样品进行了40 kOe磁场下的中子衍射实验。该化合物是一种具有两步磁化过程的变磁体。当H=0时，它具有波矢k=（0.23，0，0）的高阶公度结构。在中等磁场下，化合物的结构变为二维高阶公度结构，其波矢为k=（0.23，0，0），（0，0.23，0），（0.23，±0.23，0）和k=0，在高磁场下，化合物变为铁磁性。磁结构和场-温度相图的示意图。
Neutron diffraction experiments have been made on a single crystal sample of TbRu2Si2 under magnetic fields up to 40 kOe and in a temperature range from 4.2 to 60 K. The compound is a metamagnet with two-step magnetization process. For H=0 it has a high-order commensurate structure with a wavevectors k=(0.23, 0, 0). At an intermediate field the structure changes to a two-dimensional high-order commensurate one with wavevectors of k=(0.23, 0, 0), (0, 0.23, 0), (0.23, ±0.23, 0) and k=0, and at a high field the compound becomes ferromagnetic. Schematic representation of the magnetic structures and a field-temperature phase diagram are presented.