Magnetic structure of MnO at 10 K from total neutron scattering data.
Magnetic structure of MnO at 10 K from total neutron scattering data.
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DOI：
10.1103/physrevlett.96.047209
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发表时间：
2006-02
影响因子：
8.6
通讯作者：
A. Goodwin;M. Tucker;M. Dove;D. Keen
中科院分区：
文献类型：
--
作者：
A. Goodwin;M. Tucker;M. Dove;D. Keen
从粉末样品的MnO收集在10 K的总中子散射数据进行了分析，使用反向蒙特卡罗方法来细化的核和磁结构。结果给出了第一个明确的平均磁结构的分配。磁矩在（111）片内铁磁性地对准，其中交替片的磁化矢量沿着平行于和反平行于方向的轴沿着排列，尽管具有小的调制的面外分量。Mn和O的小位移（用相同的周期调制）伴随着磁有序，原子和磁结构都可以在单斜空间群C2中描述。
Total neutron scattering data from a powdered sample of MnO collected at 10 K have been analyzed using the reverse Monte Carlo method to refine the nuclear and magnetic structure. The results give the first unambiguous assignment of the average magnetic structure. The magnetic moments are aligned ferromagnetically within (111) sheets with the magnetization vectors of alternate sheets along axes parallel and antiparallel to the directions, albeit with a small modulated out-of-plane component. Small displacements of Mn and O (modulated with the same periodicity) accompany the magnetic ordering and both atomic and magnetic structures may be described in the monoclinic space group C2.