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arXiv 1003.6001cond-mat.soft
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倾斜手性近晶相的连续介质理论

Continuum theory of tilted chiral smectic phases

Jean-Paul Marcerou

摘要:

我们表明,在倾斜的手性近晶中观察到的扭曲相称的相位序列解释的静电能量的增益,由于锁定的晶胞的层的数量,这是整数最接近的比间距在厚度上的subjacent Sm-C $^*_α$相。我们还解释了在序列的中间的螺旋度的符号变化之间的平衡两个扭曲源一个内在的和另一个由于失真的Sm-C $^*_α$。

英文摘要:

We demonstrate that the sequence of distorted commensurate phases observed in tilted chiral smectics is explained by the gain in electrostatic energy due to the lock-in of the unit cell to a number of layers which is the integer closest to the ratio pitch over thickness of the subjacent Sm-C$^*_α$ phase. We also explain the sign change of the helicity in the middle of the sequence by a balance between two twist sources one intrinsic and another due to the distortion of the Sm-C$^*_α$.

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