The symmetry characters of quasiperiodic crystals and incommensurable phases were discussed.
讨论了准晶体及无公度相的对称特点。
2
In this article, the symmetryof phonons and the coupling between phonons along different coordinates directions are discussed for molecular crystals in which dipolar coupling exists.
本文讨论了存在偶极矩作用下,分子晶体声子的对称性及声子各向偶极矩耦合情形。
3
The results elucidate that the linear polarization state and the symmetryof the incident beams cannot be kept during propagation in anisotropic crystals.