Liquid crystal blue phases (BPs) are three-dimensional soft crystals with unit cell sizes orders of magnitude larger than those of classic, atomic crystals. The directed self-assembly of BPs on chemically patterned surfaces uniquely enables detailed in situ resonant soft x-ray scattering measurements of martensitic phase transformations in these systems. The formation of twin lamellae is explicitly identified during the BPII-to-BPI transformation, further corroborating the martensitic nature of this transformation and broadening the analogy between soft and atomic crystal diffusionless phase transformations to include their strain-release mechanisms.

中文翻译：

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软晶体马氏体：液晶马氏体转变的原位共振软X射线散射研究

液晶蓝相（BPs）是三维软晶体，其晶胞尺寸比经典的原子晶体大几个数量级。BP在化学图案化表面上的定向自组装，独特地实现了这些系统中马氏体相变的详细原位共振软X射线散射测量。在BPII到BPI的转化过程中，明确识别出双晶层的形成，进一步证实了该转化的马氏体性质，并拓宽了软和原子晶体无扩散相转化之间的类比，以包括其应变释放机制。