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首页> 外文期刊>The European physical journal, E. Soft matter >Symmetry, topology and faceting in bicontinuous lyotropic crystals
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Symmetry, topology and faceting in bicontinuous lyotropic crystals

机译：双连续溶致晶体的对称性，拓扑和刻面

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摘要

Phase diagrams of phytantriol/ethanol/water and phytantriol/DSPG/ethanol/ water systems are explored and experiments on facetings of Pn3m-in-L1 and Im3m-in-L1 crystals are performed. Observed crystal habits do not agree with the Friedel-Donnay-Harker rules. We argue that this paradox can be explained in terms of constraints imposed on Pn3m/L1 and Im3m/L1 interfaces by the bicontinuous topology of the cubic phases. We point out that when free edges of the surfactant bilayer are prohibited at these interfaces, the two labyrinthes separated by the bilayer cannot anymore be equivalent. The corresponding Pn3m → Fd3m and Im3m → Pm3m symmetry breakings are unveiled by the abnormal facetings. Graphical abstract: [Figure not available: see fulltext.]
机译：探索了植物三醇/乙醇/水和植物三醇/ DSPG /乙醇/水系统的相图，并进行了Pn3m-in-L1和Im3m-in-L1晶体刻面的实验。观察到的晶体习惯与弗里德尔-唐尼-哈克规则不符。我们认为，可以通过立方相的双连续拓扑对Pn3m / L1和Im3m / L1接口施加的约束条件来解释这种悖论。我们指出，当在这些界面处禁止表面活性剂双层的自由边缘时，由双层分离的两个迷宫不再能等同。异常刻面揭示了相应的Pn3m→Fd3m和Im3m→Pm3m对称断裂。图形摘要：[该图不可用：请参见全文。]

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