Laver M, Forgan E M, Abrahamsen A B, Bowell C, Geue Th, Cubitt R
NIST Center for Neutron Research, Gaithersburg, Maryland 20899, USA.
Phys Rev Lett. 2008 Mar 14;100(10):107001. doi: 10.1103/PhysRevLett.100.107001. Epub 2008 Mar 12.
We describe the use of reverse Monte Carlo refinement to extract structural information from angle-resolved data of a Bragg peak. Starting with small-angle neutron scattering data, the positional order of an ensemble of flux lines in superconducting Nb is revealed. We discuss the uncovered correlation functions in the light of topical theories, in particular, the "Bragg glass" paradigm.
我们描述了如何使用反向蒙特卡罗精修从布拉格峰的角分辨数据中提取结构信息。从低角度中子散射数据出发，揭示了超导铌中磁通线系综的位置有序性。我们根据当前的理论，特别是“布拉格玻璃”范式，讨论了所发现的关联函数。
