Magnetic structure of Nd2Mo2O7
Magnetic structure of Nd2Mo2O7
复制标题
Nd2Mo2O7的磁性结构
DOI：
10.1143/jpsj.70.284
复制
发表时间：
2001
影响因子：
1.7
通讯作者：
K. Kakurai
中科院分区：
文献类型：
--
作者：
Y. Yasui;Yasuyuki Kondo;Masaki Kanada;Masafumi Ito;H. Harashina;M. Sato;K. Kakurai
用中子衍射方法研究了金属烧绿石型铁磁体Nd 2 Mo 2 O 7的单晶。提出在4 K的磁结构是非共线的Mo和Nd的时刻，这两个系统的净时刻反平行对齐。在居里点（~ 93 K）~ 30 K之间的温度范围内，主要在Mo位的磁矩与铁磁磁化强度有序排列，其结构似乎也是非共线的。随着温度的降低，Nd磁矩的有序化逐渐发展，并在低于20 K时变得明显。讨论了磁结构与反常输运性质之间的关系。
Neutron diffraction studies have been carried out on a single crystal of the metallic pyrochlore ferromagnet Nd 2 Mo 2 O 7 . The magnetic structures proposed at 4 K is non-collinear for both the Mo- and Nd-moments, where the net moments of the two systems align antiparallel. In the temperature region between the Curie point (∼93 K) and ∼30 K, the moments primarily at Mo sites orders with the ferromagnetic magnetization, where the structure seems to be non-collinear, too. The ordering of the Nd moments gradually develops and becomes significant below ∼20 K with decreasing temperature. Discussion on the relationship between the magnetic structure and the anomalous transport properties is presented.