We studied numerically memory effects in mixtures of liquid crystals (LCs) and nanoparticles (NPs) deep in the nematic LC phase. LC-NP coupling was simulated by Lebwohl-Lasher lattice model. We assumed that NPs affect LC molecules as a quenched random anisotropy field. Such behavior is expected when NP generate in LC matrix topological dipoles. We show that in such systems information could be stored in a controlled way.
COBISS.SI-ID: 17229832
We studied experimentally and theoretically influence of disorder on periodic translational ordering in binary systems. The first system component exhibits translational ordering and the second component acts as a random field. A possible experimental realization of such a system represents a liquid crystal immersed in porous glass. X-ray scattering revealed pronounced memory effects. To explain measurements theoretically we had to take into account phenomena at molecular scale.
COBISS.SI-ID: 17229832