Negative-positive monopole transitions in cholesteric liquid crystals
Kurik M. V., Lavrentovich D.
The nature of the changes in the monopole structures accompanying a transition out of a levorotary into a dextrorotary cholesteric is clarified experimentally for the first time. The concept of " + " and " — " monopoles in cholesterics is introduced. In the inversion region, textures are discovered with equatorial disclinations and surface and volume point defects. Analogies with textures of 3He-A in a sphere are noted.
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![](/ps/1325/article_20019_800_head.png "The nature of the changes in the monopole structures accompanying a transition out of a levorotary into a dextrorotary cholesteric is clarified experimentally for the first time. The concept of " + " and " — " monopoles in cholesterics is introduced. In the inversion region, textures are discovered with equatorial disclinations and surface and volume point defects. Analogies with textures of <sup>3</sup>He-A in a sphere are noted.")