Model‐independent structure and resonant X‐ray spectra of intermediate smectic phases
Model‐independent structure and resonant X‐ray spectra of intermediate smectic phases
复制标题
中间近晶相的模型独立结构和共振X射线谱
DOI：
10.1080/02678290601008489
复制
发表时间：
2006
期刊：
影响因子：
2.2
通讯作者：
M. Gorkunov
中科院分区：
文献类型：
--
作者：
M. Osipov;M. Gorkunov
结果表明，中间近晶相的取向结构可以确定使用的对称性的一般自由能与任意取向的近晶层之间的耦合，而不解决一个特定的模型。以这种方式获得的三层和四层中间相的结构与实验数据一致。同样的方法，使一个预测的中间相的结构与周期性的五个和六个层，这还没有观察到的实验至今。还计算了具有预测结构的五层和六层中间相的共振X射线谱。这些光谱的特征在于许多特征，这些特征使人们能够将五层和六层中间相与具有较小周期的相区分开。
It is shown that the orientational structure of intermediate smectic phases can be determined using the symmetry properties of the general free energy with arbitrary orientational coupling between smectic layers, without addressing a particular model. The structure of three‐ and four‐layer intermediate phases, obtained in this way, corresponds to experimental data. The same method enables one to predict the structure of intermediate phases with periodicity of five and six layers, which have not been observed experimentally so far. The resonant X‐ray spectra of the five‐ and six‐layer intermediate phases with predicted structure have also been calculated. These spectra are characterized by a number of features which enable one to distinguish five‐layer and six‐layer intermediate phases from phases with smaller periods.