Surface-induced textures in lyotropic liquid crystalline mesophases

In the present work the investigation of the effect of YBa2Cu3O7−x complex compounds thin films on the mesomorphic, morphologic and orientational properties of lyotropic nematics have been carried out. The thin films of YBa2Cu3O7−x lead to an increase in number of morphologies of investigated nematics and promote the obtaining of tilted oriented and homeotropic textures of these nematics. The coating of YBa2Cu3O7−x thin films by inverted cylindrical DC magnetron sputtering system has been shown in this work to be a useful method for obtaining oriented textures of lyotropic nematics