Crossover Phenomenon in Dynamical Scaling of Phase Separation in Fe-Cr Alloy
Crossover Phenomenon in Dynamical Scaling of Phase Separation in Fe-Cr Alloy
复制标题
Fe-Cr合金相分离动态尺度的交叉现象
DOI：
10.1103/physrevlett.52.835
复制
发表时间：
1984
影响因子：
8.6
通讯作者：
M. Iizumi
中科院分区：
文献类型：
--
作者：
S. Katano;M. Iizumi
Fe-Cr合金体系中相分离的中子散射研究清楚地表明了动力学标度。结果与最近标度理论的预测结果进行了比较。特征波矢量的时间演化和结构因子的标度函数都表现出交叉现象。交叉归因于合金体系相分离后期从凝聚到凝聚过程的转变。
A neutron-scattering study of phase separation in the Fe-Cr alloy system clearly indicates dynamical scaling. The results are compared with the predictions of recent scaling theories. Both the time evolution of the characteristic wave vector and the scaling function of the structure factor show crossover phenomenon. The crossover is attributed to a transition from a coagulation to a condensation process at a late stage of phase separation in alloy systems.